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Finding the Fourth Proportional to 545,313.87, 752,515.72 and 303,584.15

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Solution

The fourth proportional to 545,313.87, 752,515.72 and 303,584.15 is: 418,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,313.87 : 752,515.72 = 303,584.15 : x
  2. Step 2: Convert to fraction form
    545,313.87/752,515.72 = 303,584.15/x
  3. Step 3: Cross multiply
    545,313.87x = 752,515.72 × 303,584.15
  4. Step 4: Simplify right side
    545,313.87x = 228,451,846,340.17
  5. Step 5: Solve for x
    x = 228,451,846,340.17/545,313.87
  6. Step 6: Final answer
    x = 418,936.43

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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.