Home / 690,744-1,036,174.32-192,108

Finding the Fourth Proportional to 690,744, 1,036,174.32 and 192,108

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Solution

The fourth proportional to 690,744, 1,036,174.32 and 192,108 is: 288,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,744 : 1,036,174.32 = 192,108 : x
  2. Step 2: Convert to fraction form
    690,744/1,036,174.32 = 192,108/x
  3. Step 3: Cross multiply
    690,744x = 1,036,174.32 × 192,108
  4. Step 4: Simplify right side
    690,744x = 199,057,376,266.56
  5. Step 5: Solve for x
    x = 199,057,376,266.56/690,744
  6. Step 6: Final answer
    x = 288,178.22

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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.