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Finding the Fourth Proportional to 934.42, 1,402.38 and 496.18

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Solution

The fourth proportional to 934.42, 1,402.38 and 496.18 is: 744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.42 : 1,402.38 = 496.18 : x
  2. Step 2: Convert to fraction form
    934.42/1,402.38 = 496.18/x
  3. Step 3: Cross multiply
    934.42x = 1,402.38 × 496.18
  4. Step 4: Simplify right side
    934.42x = 695,832.91
  5. Step 5: Solve for x
    x = 695,832.91/934.42
  6. Step 6: Final answer
    x = 744.67

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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.