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Finding the Fourth Proportional to 630.20, 944.34 and 424.01

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Solution

The fourth proportional to 630.20, 944.34 and 424.01 is: 635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.20 : 944.34 = 424.01 : x
  2. Step 2: Convert to fraction form
    630.20/944.34 = 424.01/x
  3. Step 3: Cross multiply
    630.20x = 944.34 × 424.01
  4. Step 4: Simplify right side
    630.20x = 400,402.76
  5. Step 5: Solve for x
    x = 400,402.76/630.20
  6. Step 6: Final answer
    x = 635.36

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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.