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Finding the Fourth Proportional to 548,706.88, 757,244.87 and 306,974.94

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Solution

The fourth proportional to 548,706.88, 757,244.87 and 306,974.94 is: 423,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,706.88 : 757,244.87 = 306,974.94 : x
  2. Step 2: Convert to fraction form
    548,706.88/757,244.87 = 306,974.94/x
  3. Step 3: Cross multiply
    548,706.88x = 757,244.87 × 306,974.94
  4. Step 4: Simplify right side
    548,706.88x = 232,455,198,533.56
  5. Step 5: Solve for x
    x = 232,455,198,533.56/548,706.88
  6. Step 6: Final answer
    x = 423,641.85

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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.