Home / 3,987,910.40-5,973,441.60-2,640,718.40

Finding the Fourth Proportional to 3,987,910.40, 5,973,441.60 and 2,640,718.40

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Solution

The fourth proportional to 3,987,910.40, 5,973,441.60 and 2,640,718.40 is: 3,955,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,910.40 : 5,973,441.60 = 2,640,718.40 : x
  2. Step 2: Convert to fraction form
    3,987,910.40/5,973,441.60 = 2,640,718.40/x
  3. Step 3: Cross multiply
    3,987,910.40x = 5,973,441.60 × 2,640,718.40
  4. Step 4: Simplify right side
    3,987,910.40x = 15,774,177,144,445.44
  5. Step 5: Solve for x
    x = 15,774,177,144,445.44/3,987,910.40
  6. Step 6: Final answer
    x = 3,955,499.39

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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.