Home / 2,629,337.40-3,942,839.70-1,209,828.60

Finding the Fourth Proportional to 2,629,337.40, 3,942,839.70 and 1,209,828.60

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Solution

The fourth proportional to 2,629,337.40, 3,942,839.70 and 1,209,828.60 is: 1,814,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,337.40 : 3,942,839.70 = 1,209,828.60 : x
  2. Step 2: Convert to fraction form
    2,629,337.40/3,942,839.70 = 1,209,828.60/x
  3. Step 3: Cross multiply
    2,629,337.40x = 3,942,839.70 × 1,209,828.60
  4. Step 4: Simplify right side
    2,629,337.40x = 4,770,160,234,275.42
  5. Step 5: Solve for x
    x = 4,770,160,234,275.42/2,629,337.40
  6. Step 6: Final answer
    x = 1,814,206.21

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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.