Home / 2,809,872-3,876,718.32-1,721,008.44

Finding the Fourth Proportional to 2,809,872, 3,876,718.32 and 1,721,008.44

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Solution

The fourth proportional to 2,809,872, 3,876,718.32 and 1,721,008.44 is: 2,374,437.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809,872 : 3,876,718.32 = 1,721,008.44 : x
  2. Step 2: Convert to fraction form
    2,809,872/3,876,718.32 = 1,721,008.44/x
  3. Step 3: Cross multiply
    2,809,872x = 3,876,718.32 × 1,721,008.44
  4. Step 4: Simplify right side
    2,809,872x = 6,671,864,948,222.62
  5. Step 5: Solve for x
    x = 6,671,864,948,222.62/2,809,872
  6. Step 6: Final answer
    x = 2,374,437.32

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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.