Home / 820,763.68-1,231,535.40-568,432.48

Finding the Fourth Proportional to 820,763.68, 1,231,535.40 and 568,432.48

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Solution

The fourth proportional to 820,763.68, 1,231,535.40 and 568,432.48 is: 852,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,763.68 : 1,231,535.40 = 568,432.48 : x
  2. Step 2: Convert to fraction form
    820,763.68/1,231,535.40 = 568,432.48/x
  3. Step 3: Cross multiply
    820,763.68x = 1,231,535.40 × 568,432.48
  4. Step 4: Simplify right side
    820,763.68x = 700,044,721,629.79
  5. Step 5: Solve for x
    x = 700,044,721,629.79/820,763.68
  6. Step 6: Final answer
    x = 852,918.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.