Home / 1,557,341.80-2,336,012.70-420,101.80

Finding the Fourth Proportional to 1,557,341.80, 2,336,012.70 and 420,101.80

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Solution

The fourth proportional to 1,557,341.80, 2,336,012.70 and 420,101.80 is: 630,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,341.80 : 2,336,012.70 = 420,101.80 : x
  2. Step 2: Convert to fraction form
    1,557,341.80/2,336,012.70 = 420,101.80/x
  3. Step 3: Cross multiply
    1,557,341.80x = 2,336,012.70 × 420,101.80
  4. Step 4: Simplify right side
    1,557,341.80x = 981,363,140,092.86
  5. Step 5: Solve for x
    x = 981,363,140,092.86/1,557,341.80
  6. Step 6: Final answer
    x = 630,152.70

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Double scale
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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.