Home / 766,255.28-1,057,356.60-426,755.12

Finding the Fourth Proportional to 766,255.28, 1,057,356.60 and 426,755.12

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Solution

The fourth proportional to 766,255.28, 1,057,356.60 and 426,755.12 is: 588,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,255.28 : 1,057,356.60 = 426,755.12 : x
  2. Step 2: Convert to fraction form
    766,255.28/1,057,356.60 = 426,755.12/x
  3. Step 3: Cross multiply
    766,255.28x = 1,057,356.60 × 426,755.12
  4. Step 4: Simplify right side
    766,255.28x = 451,232,342,715.79
  5. Step 5: Solve for x
    x = 451,232,342,715.79/766,255.28
  6. Step 6: Final answer
    x = 588,879.91

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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.