Home / 749,105.80-1,123,658.70-497,163.40

Finding the Fourth Proportional to 749,105.80, 1,123,658.70 and 497,163.40

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Solution

The fourth proportional to 749,105.80, 1,123,658.70 and 497,163.40 is: 745,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,105.80 : 1,123,658.70 = 497,163.40 : x
  2. Step 2: Convert to fraction form
    749,105.80/1,123,658.70 = 497,163.40/x
  3. Step 3: Cross multiply
    749,105.80x = 1,123,658.70 × 497,163.40
  4. Step 4: Simplify right side
    749,105.80x = 558,641,979,731.58
  5. Step 5: Solve for x
    x = 558,641,979,731.58/749,105.80
  6. Step 6: Final answer
    x = 745,745.10

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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.