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Finding the Fourth Proportional to 652.18, 899.88 and 442.52

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Solution

The fourth proportional to 652.18, 899.88 and 442.52 is: 610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.18 : 899.88 = 442.52 : x
  2. Step 2: Convert to fraction form
    652.18/899.88 = 442.52/x
  3. Step 3: Cross multiply
    652.18x = 899.88 × 442.52
  4. Step 4: Simplify right side
    652.18x = 398,214.90
  5. Step 5: Solve for x
    x = 398,214.90/652.18
  6. Step 6: Final answer
    x = 610.59

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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.