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Finding the Fourth Proportional to 656,158.04, 905,498.10 and 354,352.04

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Solution

The fourth proportional to 656,158.04, 905,498.10 and 354,352.04 is: 489,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,158.04 : 905,498.10 = 354,352.04 : x
  2. Step 2: Convert to fraction form
    656,158.04/905,498.10 = 354,352.04/x
  3. Step 3: Cross multiply
    656,158.04x = 905,498.10 × 354,352.04
  4. Step 4: Simplify right side
    656,158.04x = 320,865,098,951.12
  5. Step 5: Solve for x
    x = 320,865,098,951.12/656,158.04
  6. Step 6: Final answer
    x = 489,005.82

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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.