Home / 749,081.70-1,123,622.55-497,139.30

Finding the Fourth Proportional to 749,081.70, 1,123,622.55 and 497,139.30

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Solution

The fourth proportional to 749,081.70, 1,123,622.55 and 497,139.30 is: 745,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,081.70 : 1,123,622.55 = 497,139.30 : x
  2. Step 2: Convert to fraction form
    749,081.70/1,123,622.55 = 497,139.30/x
  3. Step 3: Cross multiply
    749,081.70x = 1,123,622.55 × 497,139.30
  4. Step 4: Simplify right side
    749,081.70x = 558,596,927,971.22
  5. Step 5: Solve for x
    x = 558,596,927,971.22/749,081.70
  6. Step 6: Final answer
    x = 745,708.95

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Half scale
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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.