Home / 858,043.93-1,287,404.49-325,706.26

Finding the Fourth Proportional to 858,043.93, 1,287,404.49 and 325,706.26

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Solution

The fourth proportional to 858,043.93, 1,287,404.49 and 325,706.26 is: 488,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,043.93 : 1,287,404.49 = 325,706.26 : x
  2. Step 2: Convert to fraction form
    858,043.93/1,287,404.49 = 325,706.26/x
  3. Step 3: Cross multiply
    858,043.93x = 1,287,404.49 × 325,706.26
  4. Step 4: Simplify right side
    858,043.93x = 419,315,701,545.11
  5. Step 5: Solve for x
    x = 419,315,701,545.11/858,043.93
  6. Step 6: Final answer
    x = 488,687.92

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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.