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Finding the Fourth Proportional to 694.98, 958.65 and 458.93

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Solution

The fourth proportional to 694.98, 958.65 and 458.93 is: 633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.98 : 958.65 = 458.93 : x
  2. Step 2: Convert to fraction form
    694.98/958.65 = 458.93/x
  3. Step 3: Cross multiply
    694.98x = 958.65 × 458.93
  4. Step 4: Simplify right side
    694.98x = 439,948.45
  5. Step 5: Solve for x
    x = 439,948.45/694.98
  6. Step 6: Final answer
    x = 633.04

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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.