Home / 749,095.38-1,123,749.69-243,493.80

Finding the Fourth Proportional to 749,095.38, 1,123,749.69 and 243,493.80

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Solution

The fourth proportional to 749,095.38, 1,123,749.69 and 243,493.80 is: 365,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,095.38 : 1,123,749.69 = 243,493.80 : x
  2. Step 2: Convert to fraction form
    749,095.38/1,123,749.69 = 243,493.80/x
  3. Step 3: Cross multiply
    749,095.38x = 1,123,749.69 × 243,493.80
  4. Step 4: Simplify right side
    749,095.38x = 273,626,082,266.92
  5. Step 5: Solve for x
    x = 273,626,082,266.92/749,095.38
  6. Step 6: Final answer
    x = 365,275.36

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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.