Home / 749,048.30-1,123,572.45-497,105.90

Finding the Fourth Proportional to 749,048.30, 1,123,572.45 and 497,105.90

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Solution

The fourth proportional to 749,048.30, 1,123,572.45 and 497,105.90 is: 745,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,048.30 : 1,123,572.45 = 497,105.90 : x
  2. Step 2: Convert to fraction form
    749,048.30/1,123,572.45 = 497,105.90/x
  3. Step 3: Cross multiply
    749,048.30x = 1,123,572.45 × 497,105.90
  4. Step 4: Simplify right side
    749,048.30x = 558,534,493,972.46
  5. Step 5: Solve for x
    x = 558,534,493,972.46/749,048.30
  6. Step 6: Final answer
    x = 745,658.85

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Double scale
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Similar ratio
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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.