Home / 766,241.40-1,057,423.50-426,718.20

Finding the Fourth Proportional to 766,241.40, 1,057,423.50 and 426,718.20

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Solution

The fourth proportional to 766,241.40, 1,057,423.50 and 426,718.20 is: 588,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,241.40 : 1,057,423.50 = 426,718.20 : x
  2. Step 2: Convert to fraction form
    766,241.40/1,057,423.50 = 426,718.20/x
  3. Step 3: Cross multiply
    766,241.40x = 1,057,423.50 × 426,718.20
  4. Step 4: Simplify right side
    766,241.40x = 451,221,852,557.70
  5. Step 5: Solve for x
    x = 451,221,852,557.70/766,241.40
  6. Step 6: Final answer
    x = 588,876.89

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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.