Home / 809,962.20-1,214,943.30-432,048.60

Finding the Fourth Proportional to 809,962.20, 1,214,943.30 and 432,048.60

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Solution

The fourth proportional to 809,962.20, 1,214,943.30 and 432,048.60 is: 648,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,962.20 : 1,214,943.30 = 432,048.60 : x
  2. Step 2: Convert to fraction form
    809,962.20/1,214,943.30 = 432,048.60/x
  3. Step 3: Cross multiply
    809,962.20x = 1,214,943.30 × 432,048.60
  4. Step 4: Simplify right side
    809,962.20x = 524,914,551,844.38
  5. Step 5: Solve for x
    x = 524,914,551,844.38/809,962.20
  6. Step 6: Final answer
    x = 648,072.90

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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.