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Finding the Fourth Proportional to 572.49, 862.20 and 504.72

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Solution

The fourth proportional to 572.49, 862.20 and 504.72 is: 760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.49 : 862.20 = 504.72 : x
  2. Step 2: Convert to fraction form
    572.49/862.20 = 504.72/x
  3. Step 3: Cross multiply
    572.49x = 862.20 × 504.72
  4. Step 4: Simplify right side
    572.49x = 435,169.58
  5. Step 5: Solve for x
    x = 435,169.58/572.49
  6. Step 6: Final answer
    x = 760.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.