Home / 782,359.60-1,078,596.12-668,857.41

Finding the Fourth Proportional to 782,359.60, 1,078,596.12 and 668,857.41

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Solution

The fourth proportional to 782,359.60, 1,078,596.12 and 668,857.41 is: 922,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,359.60 : 1,078,596.12 = 668,857.41 : x
  2. Step 2: Convert to fraction form
    782,359.60/1,078,596.12 = 668,857.41/x
  3. Step 3: Cross multiply
    782,359.60x = 1,078,596.12 × 668,857.41
  4. Step 4: Simplify right side
    782,359.60x = 721,427,007,259.25
  5. Step 5: Solve for x
    x = 721,427,007,259.25/782,359.60
  6. Step 6: Final answer
    x = 922,116.90

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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.