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Finding the Fourth Proportional to 654.52, 904.98 and 572.52

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Solution

The fourth proportional to 654.52, 904.98 and 572.52 is: 791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.52 : 904.98 = 572.52 : x
  2. Step 2: Convert to fraction form
    654.52/904.98 = 572.52/x
  3. Step 3: Cross multiply
    654.52x = 904.98 × 572.52
  4. Step 4: Simplify right side
    654.52x = 518,119.15
  5. Step 5: Solve for x
    x = 518,119.15/654.52
  6. Step 6: Final answer
    x = 791.60

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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.