Home / 3,120,438.20-4,680,657.30-1,226,204.60

Finding the Fourth Proportional to 3,120,438.20, 4,680,657.30 and 1,226,204.60

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Solution

The fourth proportional to 3,120,438.20, 4,680,657.30 and 1,226,204.60 is: 1,839,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,438.20 : 4,680,657.30 = 1,226,204.60 : x
  2. Step 2: Convert to fraction form
    3,120,438.20/4,680,657.30 = 1,226,204.60/x
  3. Step 3: Cross multiply
    3,120,438.20x = 4,680,657.30 × 1,226,204.60
  4. Step 4: Simplify right side
    3,120,438.20x = 5,739,443,512,283.58
  5. Step 5: Solve for x
    x = 5,739,443,512,283.58/3,120,438.20
  6. Step 6: Final answer
    x = 1,839,306.90

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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.