Home / 1,331,943.20-1,997,115.67-611,383.43

Finding the Fourth Proportional to 1,331,943.20, 1,997,115.67 and 611,383.43

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Solution

The fourth proportional to 1,331,943.20, 1,997,115.67 and 611,383.43 is: 916,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,943.20 : 1,997,115.67 = 611,383.43 : x
  2. Step 2: Convert to fraction form
    1,331,943.20/1,997,115.67 = 611,383.43/x
  3. Step 3: Cross multiply
    1,331,943.20x = 1,997,115.67 × 611,383.43
  4. Step 4: Simplify right side
    1,331,943.20x = 1,221,003,428,431.35
  5. Step 5: Solve for x
    x = 1,221,003,428,431.35/1,331,943.20
  6. Step 6: Final answer
    x = 916,708.33

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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.