Home / 690,743.50-1,036,173.57-192,107.50

Finding the Fourth Proportional to 690,743.50, 1,036,173.57 and 192,107.50

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Solution

The fourth proportional to 690,743.50, 1,036,173.57 and 192,107.50 is: 288,177.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,743.50 : 1,036,173.57 = 192,107.50 : x
  2. Step 2: Convert to fraction form
    690,743.50/1,036,173.57 = 192,107.50/x
  3. Step 3: Cross multiply
    690,743.50x = 1,036,173.57 × 192,107.50
  4. Step 4: Simplify right side
    690,743.50x = 199,056,714,098.78
  5. Step 5: Solve for x
    x = 199,056,714,098.78/690,743.50
  6. Step 6: Final answer
    x = 288,177.47

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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.