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Finding the Fourth Proportional to 548,618.37, 757,062.89 and 306,854.23

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Solution

The fourth proportional to 548,618.37, 757,062.89 and 306,854.23 is: 423,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,618.37 : 757,062.89 = 306,854.23 : x
  2. Step 2: Convert to fraction form
    548,618.37/757,062.89 = 306,854.23/x
  3. Step 3: Cross multiply
    548,618.37x = 757,062.89 × 306,854.23
  4. Step 4: Simplify right side
    548,618.37x = 232,307,951,142.65
  5. Step 5: Solve for x
    x = 232,307,951,142.65/548,618.37
  6. Step 6: Final answer
    x = 423,441.80

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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.