Home / 749,136.20-1,123,704.30-497,193.80

Finding the Fourth Proportional to 749,136.20, 1,123,704.30 and 497,193.80

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Solution

The fourth proportional to 749,136.20, 1,123,704.30 and 497,193.80 is: 745,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,136.20 : 1,123,704.30 = 497,193.80 : x
  2. Step 2: Convert to fraction form
    749,136.20/1,123,704.30 = 497,193.80/x
  3. Step 3: Cross multiply
    749,136.20x = 1,123,704.30 × 497,193.80
  4. Step 4: Simplify right side
    749,136.20x = 558,698,810,993.34
  5. Step 5: Solve for x
    x = 558,698,810,993.34/749,136.20
  6. Step 6: Final answer
    x = 745,790.70

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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.