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Finding the Fourth Proportional to 571,078.97, 788,171.75 and 329,313.41

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Solution

The fourth proportional to 571,078.97, 788,171.75 and 329,313.41 is: 454,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,078.97 : 788,171.75 = 329,313.41 : x
  2. Step 2: Convert to fraction form
    571,078.97/788,171.75 = 329,313.41/x
  3. Step 3: Cross multiply
    571,078.97x = 788,171.75 × 329,313.41
  4. Step 4: Simplify right side
    571,078.97x = 259,555,526,658.17
  5. Step 5: Solve for x
    x = 259,555,526,658.17/571,078.97
  6. Step 6: Final answer
    x = 454,500.24

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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.