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Finding the Fourth Proportional to 500,453.48, 690,627.68 and 271,010.87

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Solution

The fourth proportional to 500,453.48, 690,627.68 and 271,010.87 is: 373,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,453.48 : 690,627.68 = 271,010.87 : x
  2. Step 2: Convert to fraction form
    500,453.48/690,627.68 = 271,010.87/x
  3. Step 3: Cross multiply
    500,453.48x = 690,627.68 × 271,010.87
  4. Step 4: Simplify right side
    500,453.48x = 187,167,608,402.88
  5. Step 5: Solve for x
    x = 187,167,608,402.88/500,453.48
  6. Step 6: Final answer
    x = 373,996.02

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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.