Home / 690,768.50-1,036,211.08-192,132.50

Finding the Fourth Proportional to 690,768.50, 1,036,211.08 and 192,132.50

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Solution

The fourth proportional to 690,768.50, 1,036,211.08 and 192,132.50 is: 288,214.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,768.50 : 1,036,211.08 = 192,132.50 : x
  2. Step 2: Convert to fraction form
    690,768.50/1,036,211.08 = 192,132.50/x
  3. Step 3: Cross multiply
    690,768.50x = 1,036,211.08 × 192,132.50
  4. Step 4: Simplify right side
    690,768.50x = 199,089,825,328.10
  5. Step 5: Solve for x
    x = 199,089,825,328.10/690,768.50
  6. Step 6: Final answer
    x = 288,214.97

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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.