Home / 2,138,258.40-2,950,796.43-1,278,818.64

Finding the Fourth Proportional to 2,138,258.40, 2,950,796.43 and 1,278,818.64

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Solution

The fourth proportional to 2,138,258.40, 2,950,796.43 and 1,278,818.64 is: 1,764,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,258.40 : 2,950,796.43 = 1,278,818.64 : x
  2. Step 2: Convert to fraction form
    2,138,258.40/2,950,796.43 = 1,278,818.64/x
  3. Step 3: Cross multiply
    2,138,258.40x = 2,950,796.43 × 1,278,818.64
  4. Step 4: Simplify right side
    2,138,258.40x = 3,773,533,477,529.46
  5. Step 5: Solve for x
    x = 3,773,533,477,529.46/2,138,258.40
  6. Step 6: Final answer
    x = 1,764,769.63

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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.