Home / 765,873.61-1,057,047.30-443,583.61

Finding the Fourth Proportional to 765,873.61, 1,057,047.30 and 443,583.61

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Solution

The fourth proportional to 765,873.61, 1,057,047.30 and 443,583.61 is: 612,227.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,873.61 : 1,057,047.30 = 443,583.61 : x
  2. Step 2: Convert to fraction form
    765,873.61/1,057,047.30 = 443,583.61/x
  3. Step 3: Cross multiply
    765,873.61x = 1,057,047.30 × 443,583.61
  4. Step 4: Simplify right side
    765,873.61x = 468,888,854,632.14
  5. Step 5: Solve for x
    x = 468,888,854,632.14/765,873.61
  6. Step 6: Final answer
    x = 612,227.46

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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.