Home / 791,915.76-1,092,761.91-486,005.04

Finding the Fourth Proportional to 791,915.76, 1,092,761.91 and 486,005.04

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Solution

The fourth proportional to 791,915.76, 1,092,761.91 and 486,005.04 is: 670,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,915.76 : 1,092,761.91 = 486,005.04 : x
  2. Step 2: Convert to fraction form
    791,915.76/1,092,761.91 = 486,005.04/x
  3. Step 3: Cross multiply
    791,915.76x = 1,092,761.91 × 486,005.04
  4. Step 4: Simplify right side
    791,915.76x = 531,087,795,780.03
  5. Step 5: Solve for x
    x = 531,087,795,780.03/791,915.76
  6. Step 6: Final answer
    x = 670,636.73

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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.