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Finding the Fourth Proportional to 951.46, 1,313.04 and 558.49

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Solution

The fourth proportional to 951.46, 1,313.04 and 558.49 is: 770.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.46 : 1,313.04 = 558.49 : x
  2. Step 2: Convert to fraction form
    951.46/1,313.04 = 558.49/x
  3. Step 3: Cross multiply
    951.46x = 1,313.04 × 558.49
  4. Step 4: Simplify right side
    951.46x = 733,319.71
  5. Step 5: Solve for x
    x = 733,319.71/951.46
  6. Step 6: Final answer
    x = 770.73

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Double scale
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1.5x scale

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.