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Finding the Fourth Proportional to 951.46, 1,313.04 and 558.50

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Solution

The fourth proportional to 951.46, 1,313.04 and 558.50 is: 770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.46 : 1,313.04 = 558.50 : x
  2. Step 2: Convert to fraction form
    951.46/1,313.04 = 558.50/x
  3. Step 3: Cross multiply
    951.46x = 1,313.04 × 558.50
  4. Step 4: Simplify right side
    951.46x = 733,332.84
  5. Step 5: Solve for x
    x = 733,332.84/951.46
  6. Step 6: Final answer
    x = 770.74

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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.