Home / 859,862.11-1,289,796.17-260,828.43

Finding the Fourth Proportional to 859,862.11, 1,289,796.17 and 260,828.43

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Solution

The fourth proportional to 859,862.11, 1,289,796.17 and 260,828.43 is: 391,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,862.11 : 1,289,796.17 = 260,828.43 : x
  2. Step 2: Convert to fraction form
    859,862.11/1,289,796.17 = 260,828.43/x
  3. Step 3: Cross multiply
    859,862.11x = 1,289,796.17 × 260,828.43
  4. Step 4: Simplify right side
    859,862.11x = 336,415,508,736.97
  5. Step 5: Solve for x
    x = 336,415,508,736.97/859,862.11
  6. Step 6: Final answer
    x = 391,243.56

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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.