Home / 749,138.20-1,123,707.30-497,195.80

Finding the Fourth Proportional to 749,138.20, 1,123,707.30 and 497,195.80

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Solution

The fourth proportional to 749,138.20, 1,123,707.30 and 497,195.80 is: 745,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,138.20 : 1,123,707.30 = 497,195.80 : x
  2. Step 2: Convert to fraction form
    749,138.20/1,123,707.30 = 497,195.80/x
  3. Step 3: Cross multiply
    749,138.20x = 1,123,707.30 × 497,195.80
  4. Step 4: Simplify right side
    749,138.20x = 558,702,549,989.34
  5. Step 5: Solve for x
    x = 558,702,549,989.34/749,138.20
  6. Step 6: Final answer
    x = 745,793.70

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Double scale
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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.