Home / 748,920.14-1,123,269.49-275,494.78

Finding the Fourth Proportional to 748,920.14, 1,123,269.49 and 275,494.78

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Solution

The fourth proportional to 748,920.14, 1,123,269.49 and 275,494.78 is: 413,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,920.14 : 1,123,269.49 = 275,494.78 : x
  2. Step 2: Convert to fraction form
    748,920.14/1,123,269.49 = 275,494.78/x
  3. Step 3: Cross multiply
    748,920.14x = 1,123,269.49 × 275,494.78
  4. Step 4: Simplify right side
    748,920.14x = 309,454,882,776.72
  5. Step 5: Solve for x
    x = 309,454,882,776.72/748,920.14
  6. Step 6: Final answer
    x = 413,201.44

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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.