Home / 1,125,105.80-1,687,658.70-451,291.10

Finding the Fourth Proportional to 1,125,105.80, 1,687,658.70 and 451,291.10

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Solution

The fourth proportional to 1,125,105.80, 1,687,658.70 and 451,291.10 is: 676,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,105.80 : 1,687,658.70 = 451,291.10 : x
  2. Step 2: Convert to fraction form
    1,125,105.80/1,687,658.70 = 451,291.10/x
  3. Step 3: Cross multiply
    1,125,105.80x = 1,687,658.70 × 451,291.10
  4. Step 4: Simplify right side
    1,125,105.80x = 761,625,351,147.57
  5. Step 5: Solve for x
    x = 761,625,351,147.57/1,125,105.80
  6. Step 6: Final answer
    x = 676,936.65

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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.