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Finding the Fourth Proportional to 615,929.64, 925,534.71 and 331,838.34

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Solution

The fourth proportional to 615,929.64, 925,534.71 and 331,838.34 is: 498,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,929.64 : 925,534.71 = 331,838.34 : x
  2. Step 2: Convert to fraction form
    615,929.64/925,534.71 = 331,838.34/x
  3. Step 3: Cross multiply
    615,929.64x = 925,534.71 × 331,838.34
  4. Step 4: Simplify right side
    615,929.64x = 307,127,901,778.78
  5. Step 5: Solve for x
    x = 307,127,901,778.78/615,929.64
  6. Step 6: Final answer
    x = 498,641.21

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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.