Home / 765,875.12-1,057,049.37-443,585.12

Finding the Fourth Proportional to 765,875.12, 1,057,049.37 and 443,585.12

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Solution

The fourth proportional to 765,875.12, 1,057,049.37 and 443,585.12 is: 612,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,875.12 : 1,057,049.37 = 443,585.12 : x
  2. Step 2: Convert to fraction form
    765,875.12/1,057,049.37 = 443,585.12/x
  3. Step 3: Cross multiply
    765,875.12x = 1,057,049.37 × 443,585.12
  4. Step 4: Simplify right side
    765,875.12x = 468,891,366,352.13
  5. Step 5: Solve for x
    x = 468,891,366,352.13/765,875.12
  6. Step 6: Final answer
    x = 612,229.54

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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.