Home / 1,098,209.80-1,647,314.70-388,232.20

Finding the Fourth Proportional to 1,098,209.80, 1,647,314.70 and 388,232.20

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Solution

The fourth proportional to 1,098,209.80, 1,647,314.70 and 388,232.20 is: 582,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,209.80 : 1,647,314.70 = 388,232.20 : x
  2. Step 2: Convert to fraction form
    1,098,209.80/1,647,314.70 = 388,232.20/x
  3. Step 3: Cross multiply
    1,098,209.80x = 1,647,314.70 × 388,232.20
  4. Step 4: Simplify right side
    1,098,209.80x = 639,540,610,073.34
  5. Step 5: Solve for x
    x = 639,540,610,073.34/1,098,209.80
  6. Step 6: Final answer
    x = 582,348.30

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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.