Home / 1,310,010.30-1,965,015.45-363,390.30

Finding the Fourth Proportional to 1,310,010.30, 1,965,015.45 and 363,390.30

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Solution

The fourth proportional to 1,310,010.30, 1,965,015.45 and 363,390.30 is: 545,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,010.30 : 1,965,015.45 = 363,390.30 : x
  2. Step 2: Convert to fraction form
    1,310,010.30/1,965,015.45 = 363,390.30/x
  3. Step 3: Cross multiply
    1,310,010.30x = 1,965,015.45 × 363,390.30
  4. Step 4: Simplify right side
    1,310,010.30x = 714,067,553,880.14
  5. Step 5: Solve for x
    x = 714,067,553,880.14/1,310,010.30
  6. Step 6: Final answer
    x = 545,085.45

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Half scale
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Double scale
Find fourth proportional to 1,310,011.30, 1,965,016.95 and 363,391.30
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.