Home / 782,758.92-1,080,224.82-438,620.52

Finding the Fourth Proportional to 782,758.92, 1,080,224.82 and 438,620.52

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Solution

The fourth proportional to 782,758.92, 1,080,224.82 and 438,620.52 is: 605,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,758.92 : 1,080,224.82 = 438,620.52 : x
  2. Step 2: Convert to fraction form
    782,758.92/1,080,224.82 = 438,620.52/x
  3. Step 3: Cross multiply
    782,758.92x = 1,080,224.82 × 438,620.52
  4. Step 4: Simplify right side
    782,758.92x = 473,808,772,265.31
  5. Step 5: Solve for x
    x = 473,808,772,265.31/782,758.92
  6. Step 6: Final answer
    x = 605,306.13

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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.