Home / 3,218,231.20-4,827,342.48-822,077.60

Finding the Fourth Proportional to 3,218,231.20, 4,827,342.48 and 822,077.60

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Solution

The fourth proportional to 3,218,231.20, 4,827,342.48 and 822,077.60 is: 1,233,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,231.20 : 4,827,342.48 = 822,077.60 : x
  2. Step 2: Convert to fraction form
    3,218,231.20/4,827,342.48 = 822,077.60/x
  3. Step 3: Cross multiply
    3,218,231.20x = 4,827,342.48 × 822,077.60
  4. Step 4: Simplify right side
    3,218,231.20x = 3,968,450,120,336.45
  5. Step 5: Solve for x
    x = 3,968,450,120,336.45/3,218,231.20
  6. Step 6: Final answer
    x = 1,233,115.30

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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.