Home / 749,089.70-1,123,634.55-497,147.30

Finding the Fourth Proportional to 749,089.70, 1,123,634.55 and 497,147.30

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Solution

The fourth proportional to 749,089.70, 1,123,634.55 and 497,147.30 is: 745,720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,089.70 : 1,123,634.55 = 497,147.30 : x
  2. Step 2: Convert to fraction form
    749,089.70/1,123,634.55 = 497,147.30/x
  3. Step 3: Cross multiply
    749,089.70x = 1,123,634.55 × 497,147.30
  4. Step 4: Simplify right side
    749,089.70x = 558,611,882,719.22
  5. Step 5: Solve for x
    x = 558,611,882,719.22/749,089.70
  6. Step 6: Final answer
    x = 745,720.95

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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.