Home / 728,081.20-1,092,121.80-254,717.20

Finding the Fourth Proportional to 728,081.20, 1,092,121.80 and 254,717.20

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Solution

The fourth proportional to 728,081.20, 1,092,121.80 and 254,717.20 is: 382,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,081.20 : 1,092,121.80 = 254,717.20 : x
  2. Step 2: Convert to fraction form
    728,081.20/1,092,121.80 = 254,717.20/x
  3. Step 3: Cross multiply
    728,081.20x = 1,092,121.80 × 254,717.20
  4. Step 4: Simplify right side
    728,081.20x = 278,182,206,954.96
  5. Step 5: Solve for x
    x = 278,182,206,954.96/728,081.20
  6. Step 6: Final answer
    x = 382,075.80

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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.