Home / 766,291.60-1,057,515.21-426,759.85

Finding the Fourth Proportional to 766,291.60, 1,057,515.21 and 426,759.85

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Solution

The fourth proportional to 766,291.60, 1,057,515.21 and 426,759.85 is: 588,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,291.60 : 1,057,515.21 = 426,759.85 : x
  2. Step 2: Convert to fraction form
    766,291.60/1,057,515.21 = 426,759.85/x
  3. Step 3: Cross multiply
    766,291.60x = 1,057,515.21 × 426,759.85
  4. Step 4: Simplify right side
    766,291.60x = 451,305,029,748.53
  5. Step 5: Solve for x
    x = 451,305,029,748.53/766,291.60
  6. Step 6: Final answer
    x = 588,946.86

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Double scale
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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.