Home / 724,442.20-1,086,663.30-712,000.60

Finding the Fourth Proportional to 724,442.20, 1,086,663.30 and 712,000.60

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Solution

The fourth proportional to 724,442.20, 1,086,663.30 and 712,000.60 is: 1,068,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,442.20 : 1,086,663.30 = 712,000.60 : x
  2. Step 2: Convert to fraction form
    724,442.20/1,086,663.30 = 712,000.60/x
  3. Step 3: Cross multiply
    724,442.20x = 1,086,663.30 × 712,000.60
  4. Step 4: Simplify right side
    724,442.20x = 773,704,921,597.98
  5. Step 5: Solve for x
    x = 773,704,921,597.98/724,442.20
  6. Step 6: Final answer
    x = 1,068,000.90

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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.