Home / 3,880,385.30-5,821,478.54-1,321,622.46

Finding the Fourth Proportional to 3,880,385.30, 5,821,478.54 and 1,321,622.46

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Solution

The fourth proportional to 3,880,385.30, 5,821,478.54 and 1,321,622.46 is: 1,982,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,385.30 : 5,821,478.54 = 1,321,622.46 : x
  2. Step 2: Convert to fraction form
    3,880,385.30/5,821,478.54 = 1,321,622.46/x
  3. Step 3: Cross multiply
    3,880,385.30x = 5,821,478.54 × 1,321,622.46
  4. Step 4: Simplify right side
    3,880,385.30x = 7,693,796,788,872.01
  5. Step 5: Solve for x
    x = 7,693,796,788,872.01/3,880,385.30
  6. Step 6: Final answer
    x = 1,982,740.42

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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.