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Finding the Fourth Proportional to 658,425.78, 987,589.67 and 237,702.06

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Solution

The fourth proportional to 658,425.78, 987,589.67 and 237,702.06 is: 356,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,425.78 : 987,589.67 = 237,702.06 : x
  2. Step 2: Convert to fraction form
    658,425.78/987,589.67 = 237,702.06/x
  3. Step 3: Cross multiply
    658,425.78x = 987,589.67 × 237,702.06
  4. Step 4: Simplify right side
    658,425.78x = 234,752,097,805.21
  5. Step 5: Solve for x
    x = 234,752,097,805.21/658,425.78
  6. Step 6: Final answer
    x = 356,535.40

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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.