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Finding the Fourth Proportional to 949.01, 1,423.78 and 332.78

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Solution

The fourth proportional to 949.01, 1,423.78 and 332.78 is: 499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.01 : 1,423.78 = 332.78 : x
  2. Step 2: Convert to fraction form
    949.01/1,423.78 = 332.78/x
  3. Step 3: Cross multiply
    949.01x = 1,423.78 × 332.78
  4. Step 4: Simplify right side
    949.01x = 473,797.56
  5. Step 5: Solve for x
    x = 473,797.56/949.01
  6. Step 6: Final answer
    x = 499.26

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Double scale
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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.