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Finding the Fourth Proportional to 621.22, 933.99 and 500.35

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Solution

The fourth proportional to 621.22, 933.99 and 500.35 is: 752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.22 : 933.99 = 500.35 : x
  2. Step 2: Convert to fraction form
    621.22/933.99 = 500.35/x
  3. Step 3: Cross multiply
    621.22x = 933.99 × 500.35
  4. Step 4: Simplify right side
    621.22x = 467,321.90
  5. Step 5: Solve for x
    x = 467,321.90/621.22
  6. Step 6: Final answer
    x = 752.26

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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.