Home / 726,463.16-1,089,939.97-321,599.53

Finding the Fourth Proportional to 726,463.16, 1,089,939.97 and 321,599.53

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Solution

The fourth proportional to 726,463.16, 1,089,939.97 and 321,599.53 is: 482,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,463.16 : 1,089,939.97 = 321,599.53 : x
  2. Step 2: Convert to fraction form
    726,463.16/1,089,939.97 = 321,599.53/x
  3. Step 3: Cross multiply
    726,463.16x = 1,089,939.97 × 321,599.53
  4. Step 4: Simplify right side
    726,463.16x = 350,524,176,630.51
  5. Step 5: Solve for x
    x = 350,524,176,630.51/726,463.16
  6. Step 6: Final answer
    x = 482,507.85

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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.