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Finding the Fourth Proportional to 548,551.56, 757,071.18 and 306,847.56

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Solution

The fourth proportional to 548,551.56, 757,071.18 and 306,847.56 is: 423,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,551.56 : 757,071.18 = 306,847.56 : x
  2. Step 2: Convert to fraction form
    548,551.56/757,071.18 = 306,847.56/x
  3. Step 3: Cross multiply
    548,551.56x = 757,071.18 × 306,847.56
  4. Step 4: Simplify right side
    548,551.56x = 232,305,444,329.32
  5. Step 5: Solve for x
    x = 232,305,444,329.32/548,551.56
  6. Step 6: Final answer
    x = 423,488.80

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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.