Home / 2,815,611.36-4,223,334.40-685,664.52

Finding the Fourth Proportional to 2,815,611.36, 4,223,334.40 and 685,664.52

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Solution

The fourth proportional to 2,815,611.36, 4,223,334.40 and 685,664.52 is: 1,028,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,611.36 : 4,223,334.40 = 685,664.52 : x
  2. Step 2: Convert to fraction form
    2,815,611.36/4,223,334.40 = 685,664.52/x
  3. Step 3: Cross multiply
    2,815,611.36x = 4,223,334.40 × 685,664.52
  4. Step 4: Simplify right side
    2,815,611.36x = 2,895,790,554,175.49
  5. Step 5: Solve for x
    x = 2,895,790,554,175.49/2,815,611.36
  6. Step 6: Final answer
    x = 1,028,476.66

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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.