Home / 857,949.26-1,286,933.06-258,915.78

Finding the Fourth Proportional to 857,949.26, 1,286,933.06 and 258,915.78

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Solution

The fourth proportional to 857,949.26, 1,286,933.06 and 258,915.78 is: 388,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,949.26 : 1,286,933.06 = 258,915.78 : x
  2. Step 2: Convert to fraction form
    857,949.26/1,286,933.06 = 258,915.78/x
  3. Step 3: Cross multiply
    857,949.26x = 1,286,933.06 × 258,915.78
  4. Step 4: Simplify right side
    857,949.26x = 333,207,277,684.98
  5. Step 5: Solve for x
    x = 333,207,277,684.98/857,949.26
  6. Step 6: Final answer
    x = 388,376.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.