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Finding the Fourth Proportional to 548,488.44, 756,915.82 and 306,775.16

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Solution

The fourth proportional to 548,488.44, 756,915.82 and 306,775.16 is: 423,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,488.44 : 756,915.82 = 306,775.16 : x
  2. Step 2: Convert to fraction form
    548,488.44/756,915.82 = 306,775.16/x
  3. Step 3: Cross multiply
    548,488.44x = 756,915.82 × 306,775.16
  4. Step 4: Simplify right side
    548,488.44x = 232,202,971,787.03
  5. Step 5: Solve for x
    x = 232,202,971,787.03/548,488.44
  6. Step 6: Final answer
    x = 423,350.71

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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.