Home / 545,115.38-752,251.70-303,398.04

Finding the Fourth Proportional to 545,115.38, 752,251.70 and 303,398.04

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Solution

The fourth proportional to 545,115.38, 752,251.70 and 303,398.04 is: 418,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,115.38 : 752,251.70 = 303,398.04 : x
  2. Step 2: Convert to fraction form
    545,115.38/752,251.70 = 303,398.04/x
  3. Step 3: Cross multiply
    545,115.38x = 752,251.70 × 303,398.04
  4. Step 4: Simplify right side
    545,115.38x = 228,231,689,849.68
  5. Step 5: Solve for x
    x = 228,231,689,849.68/545,115.38
  6. Step 6: Final answer
    x = 418,685.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.