Home / 749,136.16-1,123,714.59-243,699.78

Finding the Fourth Proportional to 749,136.16, 1,123,714.59 and 243,699.78

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Solution

The fourth proportional to 749,136.16, 1,123,714.59 and 243,699.78 is: 365,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,136.16 : 1,123,714.59 = 243,699.78 : x
  2. Step 2: Convert to fraction form
    749,136.16/1,123,714.59 = 243,699.78/x
  3. Step 3: Cross multiply
    749,136.16x = 1,123,714.59 × 243,699.78
  4. Step 4: Simplify right side
    749,136.16x = 273,848,995,344.95
  5. Step 5: Solve for x
    x = 273,848,995,344.95/749,136.16
  6. Step 6: Final answer
    x = 365,553.04

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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.