Home / 782,843.46-1,080,323.88-443,377.32

Finding the Fourth Proportional to 782,843.46, 1,080,323.88 and 443,377.32

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Solution

The fourth proportional to 782,843.46, 1,080,323.88 and 443,377.32 is: 611,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,843.46 : 1,080,323.88 = 443,377.32 : x
  2. Step 2: Convert to fraction form
    782,843.46/1,080,323.88 = 443,377.32/x
  3. Step 3: Cross multiply
    782,843.46x = 1,080,323.88 × 443,377.32
  4. Step 4: Simplify right side
    782,843.46x = 478,991,106,646.40
  5. Step 5: Solve for x
    x = 478,991,106,646.40/782,843.46
  6. Step 6: Final answer
    x = 611,860.65

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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.