Home / 690,743-1,036,172.82-192,107

Finding the Fourth Proportional to 690,743, 1,036,172.82 and 192,107

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Solution

The fourth proportional to 690,743, 1,036,172.82 and 192,107 is: 288,176.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,743 : 1,036,172.82 = 192,107 : x
  2. Step 2: Convert to fraction form
    690,743/1,036,172.82 = 192,107/x
  3. Step 3: Cross multiply
    690,743x = 1,036,172.82 × 192,107
  4. Step 4: Simplify right side
    690,743x = 199,056,051,931.74
  5. Step 5: Solve for x
    x = 199,056,051,931.74/690,743
  6. Step 6: Final answer
    x = 288,176.72

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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.