Home / 2,138,287.18-2,950,835.94-1,278,847.48

Finding the Fourth Proportional to 2,138,287.18, 2,950,835.94 and 1,278,847.48

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Solution

The fourth proportional to 2,138,287.18, 2,950,835.94 and 1,278,847.48 is: 1,764,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,287.18 : 2,950,835.94 = 1,278,847.48 : x
  2. Step 2: Convert to fraction form
    2,138,287.18/2,950,835.94 = 1,278,847.48/x
  3. Step 3: Cross multiply
    2,138,287.18x = 2,950,835.94 × 1,278,847.48
  4. Step 4: Simplify right side
    2,138,287.18x = 3,773,669,105,762.43
  5. Step 5: Solve for x
    x = 3,773,669,105,762.43/2,138,287.18
  6. Step 6: Final answer
    x = 1,764,809.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.