Home / 1,211,714.90-1,672,158.18-667,850.98

Finding the Fourth Proportional to 1,211,714.90, 1,672,158.18 and 667,850.98

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Solution

The fourth proportional to 1,211,714.90, 1,672,158.18 and 667,850.98 is: 921,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,714.90 : 1,672,158.18 = 667,850.98 : x
  2. Step 2: Convert to fraction form
    1,211,714.90/1,672,158.18 = 667,850.98/x
  3. Step 3: Cross multiply
    1,211,714.90x = 1,672,158.18 × 667,850.98
  4. Step 4: Simplify right side
    1,211,714.90x = 1,116,752,475,047.62
  5. Step 5: Solve for x
    x = 1,116,752,475,047.62/1,211,714.90
  6. Step 6: Final answer
    x = 921,629.73

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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.