Home / 766,240.40-1,057,422.12-426,717.20

Finding the Fourth Proportional to 766,240.40, 1,057,422.12 and 426,717.20

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Solution

The fourth proportional to 766,240.40, 1,057,422.12 and 426,717.20 is: 588,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,240.40 : 1,057,422.12 = 426,717.20 : x
  2. Step 2: Convert to fraction form
    766,240.40/1,057,422.12 = 426,717.20/x
  3. Step 3: Cross multiply
    766,240.40x = 1,057,422.12 × 426,717.20
  4. Step 4: Simplify right side
    766,240.40x = 451,220,206,264.46
  5. Step 5: Solve for x
    x = 451,220,206,264.46/766,240.40
  6. Step 6: Final answer
    x = 588,875.51

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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.