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Finding the Fourth Proportional to 637.68, 954.45 and 482.57

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Solution

The fourth proportional to 637.68, 954.45 and 482.57 is: 722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.68 : 954.45 = 482.57 : x
  2. Step 2: Convert to fraction form
    637.68/954.45 = 482.57/x
  3. Step 3: Cross multiply
    637.68x = 954.45 × 482.57
  4. Step 4: Simplify right side
    637.68x = 460,587.74
  5. Step 5: Solve for x
    x = 460,587.74/637.68
  6. Step 6: Final answer
    x = 722.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.