Home / 690,741-1,036,169.82-192,105

Finding the Fourth Proportional to 690,741, 1,036,169.82 and 192,105

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Solution

The fourth proportional to 690,741, 1,036,169.82 and 192,105 is: 288,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,741 : 1,036,169.82 = 192,105 : x
  2. Step 2: Convert to fraction form
    690,741/1,036,169.82 = 192,105/x
  3. Step 3: Cross multiply
    690,741x = 1,036,169.82 × 192,105
  4. Step 4: Simplify right side
    690,741x = 199,053,403,271.10
  5. Step 5: Solve for x
    x = 199,053,403,271.10/690,741
  6. Step 6: Final answer
    x = 288,173.72

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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.