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Finding the Fourth Proportional to 548,374.05, 756,751.01 and 306,653.85

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Solution

The fourth proportional to 548,374.05, 756,751.01 and 306,653.85 is: 423,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,374.05 : 756,751.01 = 306,653.85 : x
  2. Step 2: Convert to fraction form
    548,374.05/756,751.01 = 306,653.85/x
  3. Step 3: Cross multiply
    548,374.05x = 756,751.01 × 306,653.85
  4. Step 4: Simplify right side
    548,374.05x = 232,060,609,174.62
  5. Step 5: Solve for x
    x = 232,060,609,174.62/548,374.05
  6. Step 6: Final answer
    x = 423,179.41

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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.