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Finding the Fourth Proportional to 571.22, 787.52 and 414.08

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Solution

The fourth proportional to 571.22, 787.52 and 414.08 is: 570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.22 : 787.52 = 414.08 : x
  2. Step 2: Convert to fraction form
    571.22/787.52 = 414.08/x
  3. Step 3: Cross multiply
    571.22x = 787.52 × 414.08
  4. Step 4: Simplify right side
    571.22x = 326,096.28
  5. Step 5: Solve for x
    x = 326,096.28/571.22
  6. Step 6: Final answer
    x = 570.88

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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.