Home / 726,774.38-1,089,358.72-300,074.96

Finding the Fourth Proportional to 726,774.38, 1,089,358.72 and 300,074.96

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Solution

The fourth proportional to 726,774.38, 1,089,358.72 and 300,074.96 is: 449,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,774.38 : 1,089,358.72 = 300,074.96 : x
  2. Step 2: Convert to fraction form
    726,774.38/1,089,358.72 = 300,074.96/x
  3. Step 3: Cross multiply
    726,774.38x = 1,089,358.72 × 300,074.96
  4. Step 4: Simplify right side
    726,774.38x = 326,889,274,329.65
  5. Step 5: Solve for x
    x = 326,889,274,329.65/726,774.38
  6. Step 6: Final answer
    x = 449,780.95

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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.