Home / 2,131,858.40-3,199,445.86-1,487,979.24

Finding the Fourth Proportional to 2,131,858.40, 3,199,445.86 and 1,487,979.24

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Solution

The fourth proportional to 2,131,858.40, 3,199,445.86 and 1,487,979.24 is: 2,233,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,858.40 : 3,199,445.86 = 1,487,979.24 : x
  2. Step 2: Convert to fraction form
    2,131,858.40/3,199,445.86 = 1,487,979.24/x
  3. Step 3: Cross multiply
    2,131,858.40x = 3,199,445.86 × 1,487,979.24
  4. Step 4: Simplify right side
    2,131,858.40x = 4,760,709,019,183.95
  5. Step 5: Solve for x
    x = 4,760,709,019,183.95/2,131,858.40
  6. Step 6: Final answer
    x = 2,233,126.28

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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.