Home / 1,231,478.82-1,699,469.64-687,596.22

Finding the Fourth Proportional to 1,231,478.82, 1,699,469.64 and 687,596.22

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Solution

The fourth proportional to 1,231,478.82, 1,699,469.64 and 687,596.22 is: 948,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,478.82 : 1,699,469.64 = 687,596.22 : x
  2. Step 2: Convert to fraction form
    1,231,478.82/1,699,469.64 = 687,596.22/x
  3. Step 3: Cross multiply
    1,231,478.82x = 1,699,469.64 × 687,596.22
  4. Step 4: Simplify right side
    1,231,478.82x = 1,168,548,900,468.76
  5. Step 5: Solve for x
    x = 1,168,548,900,468.76/1,231,478.82
  6. Step 6: Final answer
    x = 948,898.90

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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.