Home / 1,131,986.14-1,561,914.30-648,702.88

Finding the Fourth Proportional to 1,131,986.14, 1,561,914.30 and 648,702.88

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Solution

The fourth proportional to 1,131,986.14, 1,561,914.30 and 648,702.88 is: 895,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,986.14 : 1,561,914.30 = 648,702.88 : x
  2. Step 2: Convert to fraction form
    1,131,986.14/1,561,914.30 = 648,702.88/x
  3. Step 3: Cross multiply
    1,131,986.14x = 1,561,914.30 × 648,702.88
  4. Step 4: Simplify right side
    1,131,986.14x = 1,013,218,304,723.18
  5. Step 5: Solve for x
    x = 1,013,218,304,723.18/1,131,986.14
  6. Step 6: Final answer
    x = 895,080.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.