Home / 1,278,231.82-1,763,996.84-705,308.90

Finding the Fourth Proportional to 1,278,231.82, 1,763,996.84 and 705,308.90

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Solution

The fourth proportional to 1,278,231.82, 1,763,996.84 and 705,308.90 is: 973,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,231.82 : 1,763,996.84 = 705,308.90 : x
  2. Step 2: Convert to fraction form
    1,278,231.82/1,763,996.84 = 705,308.90/x
  3. Step 3: Cross multiply
    1,278,231.82x = 1,763,996.84 × 705,308.90
  4. Step 4: Simplify right side
    1,278,231.82x = 1,244,162,670,382.15
  5. Step 5: Solve for x
    x = 1,244,162,670,382.15/1,278,231.82
  6. Step 6: Final answer
    x = 973,346.66

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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.