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Finding the Fourth Proportional to 498,423.60, 747,125.10 and 245,314.80

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Solution

The fourth proportional to 498,423.60, 747,125.10 and 245,314.80 is: 367,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,423.60 : 747,125.10 = 245,314.80 : x
  2. Step 2: Convert to fraction form
    498,423.60/747,125.10 = 245,314.80/x
  3. Step 3: Cross multiply
    498,423.60x = 747,125.10 × 245,314.80
  4. Step 4: Simplify right side
    498,423.60x = 183,280,844,481.48
  5. Step 5: Solve for x
    x = 183,280,844,481.48/498,423.60
  6. Step 6: Final answer
    x = 367,721.04

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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.