Home / 809,765.20-1,214,647.80-436,517.20

Finding the Fourth Proportional to 809,765.20, 1,214,647.80 and 436,517.20

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Solution

The fourth proportional to 809,765.20, 1,214,647.80 and 436,517.20 is: 654,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,765.20 : 1,214,647.80 = 436,517.20 : x
  2. Step 2: Convert to fraction form
    809,765.20/1,214,647.80 = 436,517.20/x
  3. Step 3: Cross multiply
    809,765.20x = 1,214,647.80 × 436,517.20
  4. Step 4: Simplify right side
    809,765.20x = 530,214,656,642.16
  5. Step 5: Solve for x
    x = 530,214,656,642.16/809,765.20
  6. Step 6: Final answer
    x = 654,775.80

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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.