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Finding the Fourth Proportional to 658,490.40, 988,124.40 and 237,711.60

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Solution

The fourth proportional to 658,490.40, 988,124.40 and 237,711.60 is: 356,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,490.40 : 988,124.40 = 237,711.60 : x
  2. Step 2: Convert to fraction form
    658,490.40/988,124.40 = 237,711.60/x
  3. Step 3: Cross multiply
    658,490.40x = 988,124.40 × 237,711.60
  4. Step 4: Simplify right side
    658,490.40x = 234,888,632,123.04
  5. Step 5: Solve for x
    x = 234,888,632,123.04/658,490.40
  6. Step 6: Final answer
    x = 356,707.75

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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.