Home / 690,769.80-1,036,154.70-192,133.80

Finding the Fourth Proportional to 690,769.80, 1,036,154.70 and 192,133.80

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Solution

The fourth proportional to 690,769.80, 1,036,154.70 and 192,133.80 is: 288,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,769.80 : 1,036,154.70 = 192,133.80 : x
  2. Step 2: Convert to fraction form
    690,769.80/1,036,154.70 = 192,133.80/x
  3. Step 3: Cross multiply
    690,769.80x = 1,036,154.70 × 192,133.80
  4. Step 4: Simplify right side
    690,769.80x = 199,080,339,898.86
  5. Step 5: Solve for x
    x = 199,080,339,898.86/690,769.80
  6. Step 6: Final answer
    x = 288,200.70

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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.