Home / 711,819.90-1,067,418.81-213,067.26

Finding the Fourth Proportional to 711,819.90, 1,067,418.81 and 213,067.26

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Solution

The fourth proportional to 711,819.90, 1,067,418.81 and 213,067.26 is: 319,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,819.90 : 1,067,418.81 = 213,067.26 : x
  2. Step 2: Convert to fraction form
    711,819.90/1,067,418.81 = 213,067.26/x
  3. Step 3: Cross multiply
    711,819.90x = 1,067,418.81 × 213,067.26
  4. Step 4: Simplify right side
    711,819.90x = 227,432,001,119.16
  5. Step 5: Solve for x
    x = 227,432,001,119.16/711,819.90
  6. Step 6: Final answer
    x = 319,507.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.