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Finding the Fourth Proportional to 500,561.44, 690,770.60 and 271,113.40

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Solution

The fourth proportional to 500,561.44, 690,770.60 and 271,113.40 is: 374,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,561.44 : 690,770.60 = 271,113.40 : x
  2. Step 2: Convert to fraction form
    500,561.44/690,770.60 = 271,113.40/x
  3. Step 3: Cross multiply
    500,561.44x = 690,770.60 × 271,113.40
  4. Step 4: Simplify right side
    500,561.44x = 187,277,165,986.04
  5. Step 5: Solve for x
    x = 187,277,165,986.04/500,561.44
  6. Step 6: Final answer
    x = 374,134.22

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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.