Home / 1,138,753.80-1,571,480.64-629,456.04

Finding the Fourth Proportional to 1,138,753.80, 1,571,480.64 and 629,456.04

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Solution

The fourth proportional to 1,138,753.80, 1,571,480.64 and 629,456.04 is: 868,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,753.80 : 1,571,480.64 = 629,456.04 : x
  2. Step 2: Convert to fraction form
    1,138,753.80/1,571,480.64 = 629,456.04/x
  3. Step 3: Cross multiply
    1,138,753.80x = 1,571,480.64 × 629,456.04
  4. Step 4: Simplify right side
    1,138,753.80x = 989,177,980,591.07
  5. Step 5: Solve for x
    x = 989,177,980,591.07/1,138,753.80
  6. Step 6: Final answer
    x = 868,649.55

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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.