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Finding the Fourth Proportional to 658,701.52, 908,996.04 and 372,215.28

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Solution

The fourth proportional to 658,701.52, 908,996.04 and 372,215.28 is: 513,650.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,701.52 : 908,996.04 = 372,215.28 : x
  2. Step 2: Convert to fraction form
    658,701.52/908,996.04 = 372,215.28/x
  3. Step 3: Cross multiply
    658,701.52x = 908,996.04 × 372,215.28
  4. Step 4: Simplify right side
    658,701.52x = 338,342,215,547.49
  5. Step 5: Solve for x
    x = 338,342,215,547.49/658,701.52
  6. Step 6: Final answer
    x = 513,650.27

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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.