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Finding the Fourth Proportional to 617.25, 924.95 and 571.68

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Solution

The fourth proportional to 617.25, 924.95 and 571.68 is: 856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.25 : 924.95 = 571.68 : x
  2. Step 2: Convert to fraction form
    617.25/924.95 = 571.68/x
  3. Step 3: Cross multiply
    617.25x = 924.95 × 571.68
  4. Step 4: Simplify right side
    617.25x = 528,772.56
  5. Step 5: Solve for x
    x = 528,772.56/617.25
  6. Step 6: Final answer
    x = 856.66

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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.