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Finding the Fourth Proportional to 515,332.92, 772,286.58 and 372,035.64

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Solution

The fourth proportional to 515,332.92, 772,286.58 and 372,035.64 is: 557,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,332.92 : 772,286.58 = 372,035.64 : x
  2. Step 2: Convert to fraction form
    515,332.92/772,286.58 = 372,035.64/x
  3. Step 3: Cross multiply
    515,332.92x = 772,286.58 × 372,035.64
  4. Step 4: Simplify right side
    515,332.92x = 287,318,132,053.71
  5. Step 5: Solve for x
    x = 287,318,132,053.71/515,332.92
  6. Step 6: Final answer
    x = 557,538.87

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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.