Home / 1,981,988.70-2,972,343.30-561,663.42

Finding the Fourth Proportional to 1,981,988.70, 2,972,343.30 and 561,663.42

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Solution

The fourth proportional to 1,981,988.70, 2,972,343.30 and 561,663.42 is: 842,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,988.70 : 2,972,343.30 = 561,663.42 : x
  2. Step 2: Convert to fraction form
    1,981,988.70/2,972,343.30 = 561,663.42/x
  3. Step 3: Cross multiply
    1,981,988.70x = 2,972,343.30 × 561,663.42
  4. Step 4: Simplify right side
    1,981,988.70x = 1,669,456,503,292.09
  5. Step 5: Solve for x
    x = 1,669,456,503,292.09/1,981,988.70
  6. Step 6: Final answer
    x = 842,313.84

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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.