Home / 1,170,171.90-1,755,841.05-665,120.70

Finding the Fourth Proportional to 1,170,171.90, 1,755,841.05 and 665,120.70

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Solution

The fourth proportional to 1,170,171.90, 1,755,841.05 and 665,120.70 is: 998,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,171.90 : 1,755,841.05 = 665,120.70 : x
  2. Step 2: Convert to fraction form
    1,170,171.90/1,755,841.05 = 665,120.70/x
  3. Step 3: Cross multiply
    1,170,171.90x = 1,755,841.05 × 665,120.70
  4. Step 4: Simplify right side
    1,170,171.90x = 1,167,846,228,264.73
  5. Step 5: Solve for x
    x = 1,167,846,228,264.73/1,170,171.90
  6. Step 6: Final answer
    x = 998,012.54

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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.