Home / 749,135.53-1,123,713.65-243,699.15

Finding the Fourth Proportional to 749,135.53, 1,123,713.65 and 243,699.15

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Solution

The fourth proportional to 749,135.53, 1,123,713.65 and 243,699.15 is: 365,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,135.53 : 1,123,713.65 = 243,699.15 : x
  2. Step 2: Convert to fraction form
    749,135.53/1,123,713.65 = 243,699.15/x
  3. Step 3: Cross multiply
    749,135.53x = 1,123,713.65 × 243,699.15
  4. Step 4: Simplify right side
    749,135.53x = 273,848,061,348.40
  5. Step 5: Solve for x
    x = 273,848,061,348.40/749,135.53
  6. Step 6: Final answer
    x = 365,552.09

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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.