Home / 728,642.08-1,005,182.89-473,900.32

Finding the Fourth Proportional to 728,642.08, 1,005,182.89 and 473,900.32

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Solution

The fourth proportional to 728,642.08, 1,005,182.89 and 473,900.32 is: 653,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,642.08 : 1,005,182.89 = 473,900.32 : x
  2. Step 2: Convert to fraction form
    728,642.08/1,005,182.89 = 473,900.32/x
  3. Step 3: Cross multiply
    728,642.08x = 1,005,182.89 × 473,900.32
  4. Step 4: Simplify right side
    728,642.08x = 476,356,493,229.53
  5. Step 5: Solve for x
    x = 476,356,493,229.53/728,642.08
  6. Step 6: Final answer
    x = 653,759.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.