Home / 782,836.96-1,080,314.94-443,370.82

Finding the Fourth Proportional to 782,836.96, 1,080,314.94 and 443,370.82

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Solution

The fourth proportional to 782,836.96, 1,080,314.94 and 443,370.82 is: 611,851.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,836.96 : 1,080,314.94 = 443,370.82 : x
  2. Step 2: Convert to fraction form
    782,836.96/1,080,314.94 = 443,370.82/x
  3. Step 3: Cross multiply
    782,836.96x = 1,080,314.94 × 443,370.82
  4. Step 4: Simplify right side
    782,836.96x = 478,980,120,806.05
  5. Step 5: Solve for x
    x = 478,980,120,806.05/782,836.96
  6. Step 6: Final answer
    x = 611,851.69

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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.