Home / 1,941,469.60-2,912,204.40-679,424.80

Finding the Fourth Proportional to 1,941,469.60, 2,912,204.40 and 679,424.80

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Solution

The fourth proportional to 1,941,469.60, 2,912,204.40 and 679,424.80 is: 1,019,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,469.60 : 2,912,204.40 = 679,424.80 : x
  2. Step 2: Convert to fraction form
    1,941,469.60/2,912,204.40 = 679,424.80/x
  3. Step 3: Cross multiply
    1,941,469.60x = 2,912,204.40 × 679,424.80
  4. Step 4: Simplify right side
    1,941,469.60x = 1,978,623,892,029.12
  5. Step 5: Solve for x
    x = 1,978,623,892,029.12/1,941,469.60
  6. Step 6: Final answer
    x = 1,019,137.20

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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.