Home / 726,002.40-1,089,392.40-305,320.80

Finding the Fourth Proportional to 726,002.40, 1,089,392.40 and 305,320.80

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Solution

The fourth proportional to 726,002.40, 1,089,392.40 and 305,320.80 is: 458,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,002.40 : 1,089,392.40 = 305,320.80 : x
  2. Step 2: Convert to fraction form
    726,002.40/1,089,392.40 = 305,320.80/x
  3. Step 3: Cross multiply
    726,002.40x = 1,089,392.40 × 305,320.80
  4. Step 4: Simplify right side
    726,002.40x = 332,614,159,081.92
  5. Step 5: Solve for x
    x = 332,614,159,081.92/726,002.40
  6. Step 6: Final answer
    x = 458,144.71

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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.