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Finding the Fourth Proportional to 955.46, 1,432.92 and 493.09

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Solution

The fourth proportional to 955.46, 1,432.92 and 493.09 is: 739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.46 : 1,432.92 = 493.09 : x
  2. Step 2: Convert to fraction form
    955.46/1,432.92 = 493.09/x
  3. Step 3: Cross multiply
    955.46x = 1,432.92 × 493.09
  4. Step 4: Simplify right side
    955.46x = 706,558.52
  5. Step 5: Solve for x
    x = 706,558.52/955.46
  6. Step 6: Final answer
    x = 739.50

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1.5x scale

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.