Home / 1,278,231.72-1,763,996.66-705,308.79

Finding the Fourth Proportional to 1,278,231.72, 1,763,996.66 and 705,308.79

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Solution

The fourth proportional to 1,278,231.72, 1,763,996.66 and 705,308.79 is: 973,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,231.72 : 1,763,996.66 = 705,308.79 : x
  2. Step 2: Convert to fraction form
    1,278,231.72/1,763,996.66 = 705,308.79/x
  3. Step 3: Cross multiply
    1,278,231.72x = 1,763,996.66 × 705,308.79
  4. Step 4: Simplify right side
    1,278,231.72x = 1,244,162,346,302.10
  5. Step 5: Solve for x
    x = 1,244,162,346,302.10/1,278,231.72
  6. Step 6: Final answer
    x = 973,346.48

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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.