Home / 748,561.20-1,123,163.51-243,277.05

Finding the Fourth Proportional to 748,561.20, 1,123,163.51 and 243,277.05

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Solution

The fourth proportional to 748,561.20, 1,123,163.51 and 243,277.05 is: 365,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,561.20 : 1,123,163.51 = 243,277.05 : x
  2. Step 2: Convert to fraction form
    748,561.20/1,123,163.51 = 243,277.05/x
  3. Step 3: Cross multiply
    748,561.20x = 1,123,163.51 × 243,277.05
  4. Step 4: Simplify right side
    748,561.20x = 273,239,901,964.34
  5. Step 5: Solve for x
    x = 273,239,901,964.34/748,561.20
  6. Step 6: Final answer
    x = 365,020.13

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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.