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Finding the Fourth Proportional to 634.93, 956.19 and 558.72

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Solution

The fourth proportional to 634.93, 956.19 and 558.72 is: 841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.93 : 956.19 = 558.72 : x
  2. Step 2: Convert to fraction form
    634.93/956.19 = 558.72/x
  3. Step 3: Cross multiply
    634.93x = 956.19 × 558.72
  4. Step 4: Simplify right side
    634.93x = 534,242.48
  5. Step 5: Solve for x
    x = 534,242.48/634.93
  6. Step 6: Final answer
    x = 841.42

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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.