Home / 1,917,309.42-2,645,971.38-1,101,768.57

Finding the Fourth Proportional to 1,917,309.42, 2,645,971.38 and 1,101,768.57

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Solution

The fourth proportional to 1,917,309.42, 2,645,971.38 and 1,101,768.57 is: 1,520,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,309.42 : 2,645,971.38 = 1,101,768.57 : x
  2. Step 2: Convert to fraction form
    1,917,309.42/2,645,971.38 = 1,101,768.57/x
  3. Step 3: Cross multiply
    1,917,309.42x = 2,645,971.38 × 1,101,768.57
  4. Step 4: Simplify right side
    1,917,309.42x = 2,915,248,103,603.53
  5. Step 5: Solve for x
    x = 2,915,248,103,603.53/1,917,309.42
  6. Step 6: Final answer
    x = 1,520,489.12

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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.