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Finding the Fourth Proportional to 498,332.28, 687,617.43 and 294,354.89

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Solution

The fourth proportional to 498,332.28, 687,617.43 and 294,354.89 is: 406,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,332.28 : 687,617.43 = 294,354.89 : x
  2. Step 2: Convert to fraction form
    498,332.28/687,617.43 = 294,354.89/x
  3. Step 3: Cross multiply
    498,332.28x = 687,617.43 × 294,354.89
  4. Step 4: Simplify right side
    498,332.28x = 202,403,552,969.73
  5. Step 5: Solve for x
    x = 202,403,552,969.73/498,332.28
  6. Step 6: Final answer
    x = 406,161.83

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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.