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Finding the Fourth Proportional to 617.56, 852.04 and 570.94

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Solution

The fourth proportional to 617.56, 852.04 and 570.94 is: 787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.56 : 852.04 = 570.94 : x
  2. Step 2: Convert to fraction form
    617.56/852.04 = 570.94/x
  3. Step 3: Cross multiply
    617.56x = 852.04 × 570.94
  4. Step 4: Simplify right side
    617.56x = 486,463.72
  5. Step 5: Solve for x
    x = 486,463.72/617.56
  6. Step 6: Final answer
    x = 787.72

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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.