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Finding the Fourth Proportional to 571,069.74, 788,160.17 and 329,305.10

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Solution

The fourth proportional to 571,069.74, 788,160.17 and 329,305.10 is: 454,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,069.74 : 788,160.17 = 329,305.10 : x
  2. Step 2: Convert to fraction form
    571,069.74/788,160.17 = 329,305.10/x
  3. Step 3: Cross multiply
    571,069.74x = 788,160.17 × 329,305.10
  4. Step 4: Simplify right side
    571,069.74x = 259,545,160,480.33
  5. Step 5: Solve for x
    x = 259,545,160,480.33/571,069.74
  6. Step 6: Final answer
    x = 454,489.43

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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.