Home / 782,618.77-1,080,900.89-527,531.41

Finding the Fourth Proportional to 782,618.77, 1,080,900.89 and 527,531.41

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Solution

The fourth proportional to 782,618.77, 1,080,900.89 and 527,531.41 is: 728,591.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,618.77 : 1,080,900.89 = 527,531.41 : x
  2. Step 2: Convert to fraction form
    782,618.77/1,080,900.89 = 527,531.41/x
  3. Step 3: Cross multiply
    782,618.77x = 1,080,900.89 × 527,531.41
  4. Step 4: Simplify right side
    782,618.77x = 570,209,170,571.96
  5. Step 5: Solve for x
    x = 570,209,170,571.96/782,618.77
  6. Step 6: Final answer
    x = 728,591.23

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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.