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Finding the Fourth Proportional to 602,607.20, 902,792.46 and 431,475.80

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Solution

The fourth proportional to 602,607.20, 902,792.46 and 431,475.80 is: 646,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,607.20 : 902,792.46 = 431,475.80 : x
  2. Step 2: Convert to fraction form
    602,607.20/902,792.46 = 431,475.80/x
  3. Step 3: Cross multiply
    602,607.20x = 902,792.46 × 431,475.80
  4. Step 4: Simplify right side
    602,607.20x = 389,533,098,912.47
  5. Step 5: Solve for x
    x = 389,533,098,912.47/602,607.20
  6. Step 6: Final answer
    x = 646,412.95

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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.