Home / 690,678-1,036,075.68-192,042

Finding the Fourth Proportional to 690,678, 1,036,075.68 and 192,042

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Solution

The fourth proportional to 690,678, 1,036,075.68 and 192,042 is: 288,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,678 : 1,036,075.68 = 192,042 : x
  2. Step 2: Convert to fraction form
    690,678/1,036,075.68 = 192,042/x
  3. Step 3: Cross multiply
    690,678x = 1,036,075.68 × 192,042
  4. Step 4: Simplify right side
    690,678x = 198,970,045,738.56
  5. Step 5: Solve for x
    x = 198,970,045,738.56/690,678
  6. Step 6: Final answer
    x = 288,079.32

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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.