Home / 690,769.50-1,036,212.58-192,133.50

Finding the Fourth Proportional to 690,769.50, 1,036,212.58 and 192,133.50

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Solution

The fourth proportional to 690,769.50, 1,036,212.58 and 192,133.50 is: 288,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,769.50 : 1,036,212.58 = 192,133.50 : x
  2. Step 2: Convert to fraction form
    690,769.50/1,036,212.58 = 192,133.50/x
  3. Step 3: Cross multiply
    690,769.50x = 1,036,212.58 × 192,133.50
  4. Step 4: Simplify right side
    690,769.50x = 199,091,149,739.43
  5. Step 5: Solve for x
    x = 199,091,149,739.43/690,769.50
  6. Step 6: Final answer
    x = 288,216.47

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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.