Home / 1,086,709.62-1,629,987.48-287,973.48

Finding the Fourth Proportional to 1,086,709.62, 1,629,987.48 and 287,973.48

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Solution

The fourth proportional to 1,086,709.62, 1,629,987.48 and 287,973.48 is: 431,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,709.62 : 1,629,987.48 = 287,973.48 : x
  2. Step 2: Convert to fraction form
    1,086,709.62/1,629,987.48 = 287,973.48/x
  3. Step 3: Cross multiply
    1,086,709.62x = 1,629,987.48 × 287,973.48
  4. Step 4: Simplify right side
    1,086,709.62x = 469,393,166,972.03
  5. Step 5: Solve for x
    x = 469,393,166,972.03/1,086,709.62
  6. Step 6: Final answer
    x = 431,939.83

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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.