Home / 1,080,031.20-1,620,046.80-906,820.80

Finding the Fourth Proportional to 1,080,031.20, 1,620,046.80 and 906,820.80

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Solution

The fourth proportional to 1,080,031.20, 1,620,046.80 and 906,820.80 is: 1,360,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,031.20 : 1,620,046.80 = 906,820.80 : x
  2. Step 2: Convert to fraction form
    1,080,031.20/1,620,046.80 = 906,820.80/x
  3. Step 3: Cross multiply
    1,080,031.20x = 1,620,046.80 × 906,820.80
  4. Step 4: Simplify right side
    1,080,031.20x = 1,469,092,135,213.44
  5. Step 5: Solve for x
    x = 1,469,092,135,213.44/1,080,031.20
  6. Step 6: Final answer
    x = 1,360,231.20

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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.