Home / 861,376.35-1,292,182.71-292,604.77

Finding the Fourth Proportional to 861,376.35, 1,292,182.71 and 292,604.77

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Solution

The fourth proportional to 861,376.35, 1,292,182.71 and 292,604.77 is: 438,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,376.35 : 1,292,182.71 = 292,604.77 : x
  2. Step 2: Convert to fraction form
    861,376.35/1,292,182.71 = 292,604.77/x
  3. Step 3: Cross multiply
    861,376.35x = 1,292,182.71 × 292,604.77
  4. Step 4: Simplify right side
    861,376.35x = 378,098,824,657.53
  5. Step 5: Solve for x
    x = 378,098,824,657.53/861,376.35
  6. Step 6: Final answer
    x = 438,947.30

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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.