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Finding the Fourth Proportional to 955.54, 1,432.71 and 626.07

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Solution

The fourth proportional to 955.54, 1,432.71 and 626.07 is: 938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.54 : 1,432.71 = 626.07 : x
  2. Step 2: Convert to fraction form
    955.54/1,432.71 = 626.07/x
  3. Step 3: Cross multiply
    955.54x = 1,432.71 × 626.07
  4. Step 4: Simplify right side
    955.54x = 896,979.10
  5. Step 5: Solve for x
    x = 896,979.10/955.54
  6. Step 6: Final answer
    x = 938.72

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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.