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Finding the Fourth Proportional to 545,607.09, 752,961.15 and 303,889.73

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Solution

The fourth proportional to 545,607.09, 752,961.15 and 303,889.73 is: 419,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,607.09 : 752,961.15 = 303,889.73 : x
  2. Step 2: Convert to fraction form
    545,607.09/752,961.15 = 303,889.73/x
  3. Step 3: Cross multiply
    545,607.09x = 752,961.15 × 303,889.73
  4. Step 4: Simplify right side
    545,607.09x = 228,817,156,809.18
  5. Step 5: Solve for x
    x = 228,817,156,809.18/545,607.09
  6. Step 6: Final answer
    x = 419,380.83

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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.