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Finding the Fourth Proportional to 486,920.28, 730,642.86 and 202,807.11

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Solution

The fourth proportional to 486,920.28, 730,642.86 and 202,807.11 is: 304,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,920.28 : 730,642.86 = 202,807.11 : x
  2. Step 2: Convert to fraction form
    486,920.28/730,642.86 = 202,807.11/x
  3. Step 3: Cross multiply
    486,920.28x = 730,642.86 × 202,807.11
  4. Step 4: Simplify right side
    486,920.28x = 148,179,566,878.74
  5. Step 5: Solve for x
    x = 148,179,566,878.74/486,920.28
  6. Step 6: Final answer
    x = 304,319.97

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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.