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Finding the Fourth Proportional to 500,877.60, 691,207.20 and 274,522.56

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Solution

The fourth proportional to 500,877.60, 691,207.20 and 274,522.56 is: 378,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,877.60 : 691,207.20 = 274,522.56 : x
  2. Step 2: Convert to fraction form
    500,877.60/691,207.20 = 274,522.56/x
  3. Step 3: Cross multiply
    500,877.60x = 691,207.20 × 274,522.56
  4. Step 4: Simplify right side
    500,877.60x = 189,751,970,034.43
  5. Step 5: Solve for x
    x = 189,751,970,034.43/500,877.60
  6. Step 6: Final answer
    x = 378,839.00

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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.