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Finding the Fourth Proportional to 652.98, 899.06 and 616.88

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Solution

The fourth proportional to 652.98, 899.06 and 616.88 is: 849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.98 : 899.06 = 616.88 : x
  2. Step 2: Convert to fraction form
    652.98/899.06 = 616.88/x
  3. Step 3: Cross multiply
    652.98x = 899.06 × 616.88
  4. Step 4: Simplify right side
    652.98x = 554,612.13
  5. Step 5: Solve for x
    x = 554,612.13/652.98
  6. Step 6: Final answer
    x = 849.36

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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.