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Finding the Fourth Proportional to 944.68, 1,416.96 and 424.36

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Solution

The fourth proportional to 944.68, 1,416.96 and 424.36 is: 636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.68 : 1,416.96 = 424.36 : x
  2. Step 2: Convert to fraction form
    944.68/1,416.96 = 424.36/x
  3. Step 3: Cross multiply
    944.68x = 1,416.96 × 424.36
  4. Step 4: Simplify right side
    944.68x = 601,301.15
  5. Step 5: Solve for x
    x = 601,301.15/944.68
  6. Step 6: Final answer
    x = 636.51

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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.