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Finding the Fourth Proportional to 545,119.88, 752,257.88 and 303,402.54

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Solution

The fourth proportional to 545,119.88, 752,257.88 and 303,402.54 is: 418,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,119.88 : 752,257.88 = 303,402.54 : x
  2. Step 2: Convert to fraction form
    545,119.88/752,257.88 = 303,402.54/x
  3. Step 3: Cross multiply
    545,119.88x = 752,257.88 × 303,402.54
  4. Step 4: Simplify right side
    545,119.88x = 228,236,951,527.02
  5. Step 5: Solve for x
    x = 228,236,951,527.02/545,119.88
  6. Step 6: Final answer
    x = 418,691.30

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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.