Home / 1,278,676.43-1,764,564.80-705,716.60

Finding the Fourth Proportional to 1,278,676.43, 1,764,564.80 and 705,716.60

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Solution

The fourth proportional to 1,278,676.43, 1,764,564.80 and 705,716.60 is: 973,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,676.43 : 1,764,564.80 = 705,716.60 : x
  2. Step 2: Convert to fraction form
    1,278,676.43/1,764,564.80 = 705,716.60/x
  3. Step 3: Cross multiply
    1,278,676.43x = 1,764,564.80 × 705,716.60
  4. Step 4: Simplify right side
    1,278,676.43x = 1,245,282,673,672.79
  5. Step 5: Solve for x
    x = 1,245,282,673,672.79/1,278,676.43
  6. Step 6: Final answer
    x = 973,884.12

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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.