Home / 857,950.26-1,286,934.56-258,916.78

Finding the Fourth Proportional to 857,950.26, 1,286,934.56 and 258,916.78

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Solution

The fourth proportional to 857,950.26, 1,286,934.56 and 258,916.78 is: 388,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,950.26 : 1,286,934.56 = 258,916.78 : x
  2. Step 2: Convert to fraction form
    857,950.26/1,286,934.56 = 258,916.78/x
  3. Step 3: Cross multiply
    857,950.26x = 1,286,934.56 × 258,916.78
  4. Step 4: Simplify right side
    857,950.26x = 333,208,952,345.92
  5. Step 5: Solve for x
    x = 333,208,952,345.92/857,950.26
  6. Step 6: Final answer
    x = 388,377.94

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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.