Home / 2,109,959.96-2,911,684.12-1,238,780.12

Finding the Fourth Proportional to 2,109,959.96, 2,911,684.12 and 1,238,780.12

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Solution

The fourth proportional to 2,109,959.96, 2,911,684.12 and 1,238,780.12 is: 1,709,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,959.96 : 2,911,684.12 = 1,238,780.12 : x
  2. Step 2: Convert to fraction form
    2,109,959.96/2,911,684.12 = 1,238,780.12/x
  3. Step 3: Cross multiply
    2,109,959.96x = 2,911,684.12 × 1,238,780.12
  4. Step 4: Simplify right side
    2,109,959.96x = 3,606,936,403,575.70
  5. Step 5: Solve for x
    x = 3,606,936,403,575.70/2,109,959.96
  6. Step 6: Final answer
    x = 1,709,480.97

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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.