Home / 1,557,346.30-2,336,019.45-420,106.30

Finding the Fourth Proportional to 1,557,346.30, 2,336,019.45 and 420,106.30

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Solution

The fourth proportional to 1,557,346.30, 2,336,019.45 and 420,106.30 is: 630,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,346.30 : 2,336,019.45 = 420,106.30 : x
  2. Step 2: Convert to fraction form
    1,557,346.30/2,336,019.45 = 420,106.30/x
  3. Step 3: Cross multiply
    1,557,346.30x = 2,336,019.45 × 420,106.30
  4. Step 4: Simplify right side
    1,557,346.30x = 981,376,487,867.54
  5. Step 5: Solve for x
    x = 981,376,487,867.54/1,557,346.30
  6. Step 6: Final answer
    x = 630,159.45

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Half scale
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Double scale
Find fourth proportional to 1,557,347.30, 2,336,020.95 and 420,107.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.