Home / 2,632,905.40-3,948,191.70-1,213,396.60

Finding the Fourth Proportional to 2,632,905.40, 3,948,191.70 and 1,213,396.60

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Solution

The fourth proportional to 2,632,905.40, 3,948,191.70 and 1,213,396.60 is: 1,819,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632,905.40 : 3,948,191.70 = 1,213,396.60 : x
  2. Step 2: Convert to fraction form
    2,632,905.40/3,948,191.70 = 1,213,396.60/x
  3. Step 3: Cross multiply
    2,632,905.40x = 3,948,191.70 × 1,213,396.60
  4. Step 4: Simplify right side
    2,632,905.40x = 4,790,722,384,928.22
  5. Step 5: Solve for x
    x = 4,790,722,384,928.22/2,632,905.40
  6. Step 6: Final answer
    x = 1,819,557.35

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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.