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Finding the Fourth Proportional to 500,468.17, 690,649.46 and 271,025.65

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Solution

The fourth proportional to 500,468.17, 690,649.46 and 271,025.65 is: 374,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,468.17 : 690,649.46 = 271,025.65 : x
  2. Step 2: Convert to fraction form
    500,468.17/690,649.46 = 271,025.65/x
  3. Step 3: Cross multiply
    500,468.17x = 690,649.46 × 271,025.65
  4. Step 4: Simplify right side
    500,468.17x = 187,183,716,220.54
  5. Step 5: Solve for x
    x = 187,183,716,220.54/500,468.17
  6. Step 6: Final answer
    x = 374,017.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.