Home / 1,108,987.20-1,663,480.80-1,039,003.20

Finding the Fourth Proportional to 1,108,987.20, 1,663,480.80 and 1,039,003.20

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Solution

The fourth proportional to 1,108,987.20, 1,663,480.80 and 1,039,003.20 is: 1,558,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,987.20 : 1,663,480.80 = 1,039,003.20 : x
  2. Step 2: Convert to fraction form
    1,108,987.20/1,663,480.80 = 1,039,003.20/x
  3. Step 3: Cross multiply
    1,108,987.20x = 1,663,480.80 × 1,039,003.20
  4. Step 4: Simplify right side
    1,108,987.20x = 1,728,361,874,338.56
  5. Step 5: Solve for x
    x = 1,728,361,874,338.56/1,108,987.20
  6. Step 6: Final answer
    x = 1,558,504.80

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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.