Home / 690,758-1,036,195.68-192,122

Finding the Fourth Proportional to 690,758, 1,036,195.68 and 192,122

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Solution

The fourth proportional to 690,758, 1,036,195.68 and 192,122 is: 288,199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,758 : 1,036,195.68 = 192,122 : x
  2. Step 2: Convert to fraction form
    690,758/1,036,195.68 = 192,122/x
  3. Step 3: Cross multiply
    690,758x = 1,036,195.68 × 192,122
  4. Step 4: Simplify right side
    690,758x = 199,075,986,432.96
  5. Step 5: Solve for x
    x = 199,075,986,432.96/690,758
  6. Step 6: Final answer
    x = 288,199.32

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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.