Home / 766,291.54-1,057,515.13-426,759.79

Finding the Fourth Proportional to 766,291.54, 1,057,515.13 and 426,759.79

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Solution

The fourth proportional to 766,291.54, 1,057,515.13 and 426,759.79 is: 588,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,291.54 : 1,057,515.13 = 426,759.79 : x
  2. Step 2: Convert to fraction form
    766,291.54/1,057,515.13 = 426,759.79/x
  3. Step 3: Cross multiply
    766,291.54x = 1,057,515.13 × 426,759.79
  4. Step 4: Simplify right side
    766,291.54x = 451,304,932,272.60
  5. Step 5: Solve for x
    x = 451,304,932,272.60/766,291.54
  6. Step 6: Final answer
    x = 588,946.78

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.