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Finding the Fourth Proportional to 622.08, 931.70 and 500.18

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Solution

The fourth proportional to 622.08, 931.70 and 500.18 is: 749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.08 : 931.70 = 500.18 : x
  2. Step 2: Convert to fraction form
    622.08/931.70 = 500.18/x
  3. Step 3: Cross multiply
    622.08x = 931.70 × 500.18
  4. Step 4: Simplify right side
    622.08x = 466,014.30
  5. Step 5: Solve for x
    x = 466,014.30/622.08
  6. Step 6: Final answer
    x = 749.12

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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.