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Finding the Fourth Proportional to 500,523.53, 690,721.85 and 271,080.68

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Solution

The fourth proportional to 500,523.53, 690,721.85 and 271,080.68 is: 374,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,523.53 : 690,721.85 = 271,080.68 : x
  2. Step 2: Convert to fraction form
    500,523.53/690,721.85 = 271,080.68/x
  3. Step 3: Cross multiply
    500,523.53x = 690,721.85 × 271,080.68
  4. Step 4: Simplify right side
    500,523.53x = 187,241,346,012.95
  5. Step 5: Solve for x
    x = 187,241,346,012.95/500,523.53
  6. Step 6: Final answer
    x = 374,091.00

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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.