Home / 770,821.28-1,063,706.24-426,657.88

Finding the Fourth Proportional to 770,821.28, 1,063,706.24 and 426,657.88

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Solution

The fourth proportional to 770,821.28, 1,063,706.24 and 426,657.88 is: 588,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,821.28 : 1,063,706.24 = 426,657.88 : x
  2. Step 2: Convert to fraction form
    770,821.28/1,063,706.24 = 426,657.88/x
  3. Step 3: Cross multiply
    770,821.28x = 1,063,706.24 × 426,657.88
  4. Step 4: Simplify right side
    770,821.28x = 453,838,651,697.45
  5. Step 5: Solve for x
    x = 453,838,651,697.45/770,821.28
  6. Step 6: Final answer
    x = 588,772.86

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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.