Home / 861,376.30-1,292,182.66-292,604.70

Finding the Fourth Proportional to 861,376.30, 1,292,182.66 and 292,604.70

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Solution

The fourth proportional to 861,376.30, 1,292,182.66 and 292,604.70 is: 438,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,376.30 : 1,292,182.66 = 292,604.70 : x
  2. Step 2: Convert to fraction form
    861,376.30/1,292,182.66 = 292,604.70/x
  3. Step 3: Cross multiply
    861,376.30x = 1,292,182.66 × 292,604.70
  4. Step 4: Simplify right side
    861,376.30x = 378,098,719,574.50
  5. Step 5: Solve for x
    x = 378,098,719,574.50/861,376.30
  6. Step 6: Final answer
    x = 438,947.21

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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.