Home / 2,165,862.40-2,987,951.90-1,305,944.94

Finding the Fourth Proportional to 2,165,862.40, 2,987,951.90 and 1,305,944.94

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Solution

The fourth proportional to 2,165,862.40, 2,987,951.90 and 1,305,944.94 is: 1,801,638.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,862.40 : 2,987,951.90 = 1,305,944.94 : x
  2. Step 2: Convert to fraction form
    2,165,862.40/2,987,951.90 = 1,305,944.94/x
  3. Step 3: Cross multiply
    2,165,862.40x = 2,987,951.90 × 1,305,944.94
  4. Step 4: Simplify right side
    2,165,862.40x = 3,902,100,664,768.39
  5. Step 5: Solve for x
    x = 3,902,100,664,768.39/2,165,862.40
  6. Step 6: Final answer
    x = 1,801,638.31

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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.