Home / 1,105,647.90-1,660,221.45-839,708.70

Finding the Fourth Proportional to 1,105,647.90, 1,660,221.45 and 839,708.70

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Solution

The fourth proportional to 1,105,647.90, 1,660,221.45 and 839,708.70 is: 1,260,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,647.90 : 1,660,221.45 = 839,708.70 : x
  2. Step 2: Convert to fraction form
    1,105,647.90/1,660,221.45 = 839,708.70/x
  3. Step 3: Cross multiply
    1,105,647.90x = 1,660,221.45 × 839,708.70
  4. Step 4: Simplify right side
    1,105,647.90x = 1,394,102,395,491.62
  5. Step 5: Solve for x
    x = 1,394,102,395,491.62/1,105,647.90
  6. Step 6: Final answer
    x = 1,260,891.82

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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.