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Finding the Fourth Proportional to 545,229.12, 752,379.94 and 303,505.48

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Solution

The fourth proportional to 545,229.12, 752,379.94 and 303,505.48 is: 418,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,229.12 : 752,379.94 = 303,505.48 : x
  2. Step 2: Convert to fraction form
    545,229.12/752,379.94 = 303,505.48/x
  3. Step 3: Cross multiply
    545,229.12x = 752,379.94 × 303,505.48
  4. Step 4: Simplify right side
    545,229.12x = 228,351,436,151.93
  5. Step 5: Solve for x
    x = 228,351,436,151.93/545,229.12
  6. Step 6: Final answer
    x = 418,817.39

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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.