Home / 928,178.26-1,392,268.61-254,265.55

Finding the Fourth Proportional to 928,178.26, 1,392,268.61 and 254,265.55

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Solution

The fourth proportional to 928,178.26, 1,392,268.61 and 254,265.55 is: 381,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,178.26 : 1,392,268.61 = 254,265.55 : x
  2. Step 2: Convert to fraction form
    928,178.26/1,392,268.61 = 254,265.55/x
  3. Step 3: Cross multiply
    928,178.26x = 1,392,268.61 × 254,265.55
  4. Step 4: Simplify right side
    928,178.26x = 354,005,943,869.39
  5. Step 5: Solve for x
    x = 354,005,943,869.39/928,178.26
  6. Step 6: Final answer
    x = 381,398.66

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Double scale
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Similar ratio
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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.