Home / 782,552.77-1,080,935.84-647,133.73

Finding the Fourth Proportional to 782,552.77, 1,080,935.84 and 647,133.73

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Solution

The fourth proportional to 782,552.77, 1,080,935.84 and 647,133.73 is: 893,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,552.77 : 1,080,935.84 = 647,133.73 : x
  2. Step 2: Convert to fraction form
    782,552.77/1,080,935.84 = 647,133.73/x
  3. Step 3: Cross multiply
    782,552.77x = 1,080,935.84 × 647,133.73
  4. Step 4: Simplify right side
    782,552.77x = 699,510,042,029.88
  5. Step 5: Solve for x
    x = 699,510,042,029.88/782,552.77
  6. Step 6: Final answer
    x = 893,882.26

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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.