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Finding the Fourth Proportional to 498,450.60, 747,675.90 and 443,338.20

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Solution

The fourth proportional to 498,450.60, 747,675.90 and 443,338.20 is: 665,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,450.60 : 747,675.90 = 443,338.20 : x
  2. Step 2: Convert to fraction form
    498,450.60/747,675.90 = 443,338.20/x
  3. Step 3: Cross multiply
    498,450.60x = 747,675.90 × 443,338.20
  4. Step 4: Simplify right side
    498,450.60x = 331,473,287,689.38
  5. Step 5: Solve for x
    x = 331,473,287,689.38/498,450.60
  6. Step 6: Final answer
    x = 665,007.30

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1.5x scale

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.