Home / 782,821.50-1,080,294.39-425,125.50

Finding the Fourth Proportional to 782,821.50, 1,080,294.39 and 425,125.50

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Solution

The fourth proportional to 782,821.50, 1,080,294.39 and 425,125.50 is: 586,673.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,821.50 : 1,080,294.39 = 425,125.50 : x
  2. Step 2: Convert to fraction form
    782,821.50/1,080,294.39 = 425,125.50/x
  3. Step 3: Cross multiply
    782,821.50x = 1,080,294.39 × 425,125.50
  4. Step 4: Simplify right side
    782,821.50x = 459,260,692,695.95
  5. Step 5: Solve for x
    x = 459,260,692,695.95/782,821.50
  6. Step 6: Final answer
    x = 586,673.58

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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.