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Finding the Fourth Proportional to 492,737.40, 739,397.70 and 324,743.40

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Solution

The fourth proportional to 492,737.40, 739,397.70 and 324,743.40 is: 487,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,737.40 : 739,397.70 = 324,743.40 : x
  2. Step 2: Convert to fraction form
    492,737.40/739,397.70 = 324,743.40/x
  3. Step 3: Cross multiply
    492,737.40x = 739,397.70 × 324,743.40
  4. Step 4: Simplify right side
    492,737.40x = 240,114,523,050.18
  5. Step 5: Solve for x
    x = 240,114,523,050.18/492,737.40
  6. Step 6: Final answer
    x = 487,307.28

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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.