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Finding the Fourth Proportional to 500,487.53, 690,673.44 and 271,045.19

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Solution

The fourth proportional to 500,487.53, 690,673.44 and 271,045.19 is: 374,042.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,487.53 : 690,673.44 = 271,045.19 : x
  2. Step 2: Convert to fraction form
    500,487.53/690,673.44 = 271,045.19/x
  3. Step 3: Cross multiply
    500,487.53x = 690,673.44 × 271,045.19
  4. Step 4: Simplify right side
    500,487.53x = 187,203,715,499.44
  5. Step 5: Solve for x
    x = 187,203,715,499.44/500,487.53
  6. Step 6: Final answer
    x = 374,042.72

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1.5x scale

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.