Home / 1,942,387.20-2,912,198.40-743,846.40

Finding the Fourth Proportional to 1,942,387.20, 2,912,198.40 and 743,846.40

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Solution

The fourth proportional to 1,942,387.20, 2,912,198.40 and 743,846.40 is: 1,115,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,387.20 : 2,912,198.40 = 743,846.40 : x
  2. Step 2: Convert to fraction form
    1,942,387.20/2,912,198.40 = 743,846.40/x
  3. Step 3: Cross multiply
    1,942,387.20x = 2,912,198.40 × 743,846.40
  4. Step 4: Simplify right side
    1,942,387.20x = 2,166,228,295,925.76
  5. Step 5: Solve for x
    x = 2,166,228,295,925.76/1,942,387.20
  6. Step 6: Final answer
    x = 1,115,240.20

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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.