Home / 1,042,189.26-1,561,261.07-768,137.20

Finding the Fourth Proportional to 1,042,189.26, 1,561,261.07 and 768,137.20

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Solution

The fourth proportional to 1,042,189.26, 1,561,261.07 and 768,137.20 is: 1,150,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,189.26 : 1,561,261.07 = 768,137.20 : x
  2. Step 2: Convert to fraction form
    1,042,189.26/1,561,261.07 = 768,137.20/x
  3. Step 3: Cross multiply
    1,042,189.26x = 1,561,261.07 × 768,137.20
  4. Step 4: Simplify right side
    1,042,189.26x = 1,199,262,708,761.61
  5. Step 5: Solve for x
    x = 1,199,262,708,761.61/1,042,189.26
  6. Step 6: Final answer
    x = 1,150,714.90

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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.