Home / 749,190.30-1,123,785.45-497,247.90

Finding the Fourth Proportional to 749,190.30, 1,123,785.45 and 497,247.90

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Solution

The fourth proportional to 749,190.30, 1,123,785.45 and 497,247.90 is: 745,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,190.30 : 1,123,785.45 = 497,247.90 : x
  2. Step 2: Convert to fraction form
    749,190.30/1,123,785.45 = 497,247.90/x
  3. Step 3: Cross multiply
    749,190.30x = 1,123,785.45 × 497,247.90
  4. Step 4: Simplify right side
    749,190.30x = 558,799,955,063.06
  5. Step 5: Solve for x
    x = 558,799,955,063.06/749,190.30
  6. Step 6: Final answer
    x = 745,871.85

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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.