Home / 1,231,615.88-1,699,596.90-687,736.52

Finding the Fourth Proportional to 1,231,615.88, 1,699,596.90 and 687,736.52

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Solution

The fourth proportional to 1,231,615.88, 1,699,596.90 and 687,736.52 is: 949,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,615.88 : 1,699,596.90 = 687,736.52 : x
  2. Step 2: Convert to fraction form
    1,231,615.88/1,699,596.90 = 687,736.52/x
  3. Step 3: Cross multiply
    1,231,615.88x = 1,699,596.90 × 687,736.52
  4. Step 4: Simplify right side
    1,231,615.88x = 1,168,874,848,910.80
  5. Step 5: Solve for x
    x = 1,168,874,848,910.80/1,231,615.88
  6. Step 6: Final answer
    x = 949,057.96

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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.