Home / 1,211,623.66-1,671,972.46-667,757.73

Finding the Fourth Proportional to 1,211,623.66, 1,671,972.46 and 667,757.73

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Solution

The fourth proportional to 1,211,623.66, 1,671,972.46 and 667,757.73 is: 921,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,623.66 : 1,671,972.46 = 667,757.73 : x
  2. Step 2: Convert to fraction form
    1,211,623.66/1,671,972.46 = 667,757.73/x
  3. Step 3: Cross multiply
    1,211,623.66x = 1,671,972.46 × 667,757.73
  4. Step 4: Simplify right side
    1,211,623.66x = 1,116,472,533,471.13
  5. Step 5: Solve for x
    x = 1,116,472,533,471.13/1,211,623.66
  6. Step 6: Final answer
    x = 921,468.09

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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.