Home / 749,129.70-1,123,694.55-497,187.30

Finding the Fourth Proportional to 749,129.70, 1,123,694.55 and 497,187.30

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Solution

The fourth proportional to 749,129.70, 1,123,694.55 and 497,187.30 is: 745,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,129.70 : 1,123,694.55 = 497,187.30 : x
  2. Step 2: Convert to fraction form
    749,129.70/1,123,694.55 = 497,187.30/x
  3. Step 3: Cross multiply
    749,129.70x = 1,123,694.55 × 497,187.30
  4. Step 4: Simplify right side
    749,129.70x = 558,686,659,339.22
  5. Step 5: Solve for x
    x = 558,686,659,339.22/749,129.70
  6. Step 6: Final answer
    x = 745,780.95

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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.