Home / 1,215,839.86-1,678,067.36-706,837.48

Finding the Fourth Proportional to 1,215,839.86, 1,678,067.36 and 706,837.48

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Solution

The fourth proportional to 1,215,839.86, 1,678,067.36 and 706,837.48 is: 975,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,839.86 : 1,678,067.36 = 706,837.48 : x
  2. Step 2: Convert to fraction form
    1,215,839.86/1,678,067.36 = 706,837.48/x
  3. Step 3: Cross multiply
    1,215,839.86x = 1,678,067.36 × 706,837.48
  4. Step 4: Simplify right side
    1,215,839.86x = 1,186,120,904,012.65
  5. Step 5: Solve for x
    x = 1,186,120,904,012.65/1,215,839.86
  6. Step 6: Final answer
    x = 975,556.85

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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.