Home / 821,424.80-1,232,137.20-731,223.20

Finding the Fourth Proportional to 821,424.80, 1,232,137.20 and 731,223.20

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Solution

The fourth proportional to 821,424.80, 1,232,137.20 and 731,223.20 is: 1,096,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,424.80 : 1,232,137.20 = 731,223.20 : x
  2. Step 2: Convert to fraction form
    821,424.80/1,232,137.20 = 731,223.20/x
  3. Step 3: Cross multiply
    821,424.80x = 1,232,137.20 × 731,223.20
  4. Step 4: Simplify right side
    821,424.80x = 900,967,306,223.04
  5. Step 5: Solve for x
    x = 900,967,306,223.04/821,424.80
  6. Step 6: Final answer
    x = 1,096,834.80

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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.