Home / 1,278,815.16-1,764,765.07-705,855.48

Finding the Fourth Proportional to 1,278,815.16, 1,764,765.07 and 705,855.48

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Solution

The fourth proportional to 1,278,815.16, 1,764,765.07 and 705,855.48 is: 974,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,815.16 : 1,764,765.07 = 705,855.48 : x
  2. Step 2: Convert to fraction form
    1,278,815.16/1,764,765.07 = 705,855.48/x
  3. Step 3: Cross multiply
    1,278,815.16x = 1,764,765.07 × 705,855.48
  4. Step 4: Simplify right side
    1,278,815.16x = 1,245,669,093,807.44
  5. Step 5: Solve for x
    x = 1,245,669,093,807.44/1,278,815.16
  6. Step 6: Final answer
    x = 974,080.64

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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.