Home / 748,754.55-1,123,242.39-275,405.13

Finding the Fourth Proportional to 748,754.55, 1,123,242.39 and 275,405.13

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Solution

The fourth proportional to 748,754.55, 1,123,242.39 and 275,405.13 is: 413,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,754.55 : 1,123,242.39 = 275,405.13 : x
  2. Step 2: Convert to fraction form
    748,754.55/1,123,242.39 = 275,405.13/x
  3. Step 3: Cross multiply
    748,754.55x = 1,123,242.39 × 275,405.13
  4. Step 4: Simplify right side
    748,754.55x = 309,346,716,439.46
  5. Step 5: Solve for x
    x = 309,346,716,439.46/748,754.55
  6. Step 6: Final answer
    x = 413,148.36

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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.