Home / 766,915.70-1,149,061.35-486,104.90

Finding the Fourth Proportional to 766,915.70, 1,149,061.35 and 486,104.90

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Solution

The fourth proportional to 766,915.70, 1,149,061.35 and 486,104.90 is: 728,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,915.70 : 1,149,061.35 = 486,104.90 : x
  2. Step 2: Convert to fraction form
    766,915.70/1,149,061.35 = 486,104.90/x
  3. Step 3: Cross multiply
    766,915.70x = 1,149,061.35 × 486,104.90
  4. Step 4: Simplify right side
    766,915.70x = 558,564,352,635.62
  5. Step 5: Solve for x
    x = 558,564,352,635.62/766,915.70
  6. Step 6: Final answer
    x = 728,325.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.