Home / 765,873.87-1,057,047.65-443,583.87

Finding the Fourth Proportional to 765,873.87, 1,057,047.65 and 443,583.87

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Solution

The fourth proportional to 765,873.87, 1,057,047.65 and 443,583.87 is: 612,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,873.87 : 1,057,047.65 = 443,583.87 : x
  2. Step 2: Convert to fraction form
    765,873.87/1,057,047.65 = 443,583.87/x
  3. Step 3: Cross multiply
    765,873.87x = 1,057,047.65 × 443,583.87
  4. Step 4: Simplify right side
    765,873.87x = 468,889,287,361.41
  5. Step 5: Solve for x
    x = 468,889,287,361.41/765,873.87
  6. Step 6: Final answer
    x = 612,227.82

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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.