Home / 1,961,131.05-2,940,011.79-681,572.28

Finding the Fourth Proportional to 1,961,131.05, 2,940,011.79 and 681,572.28

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Solution

The fourth proportional to 1,961,131.05, 2,940,011.79 and 681,572.28 is: 1,021,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,131.05 : 2,940,011.79 = 681,572.28 : x
  2. Step 2: Convert to fraction form
    1,961,131.05/2,940,011.79 = 681,572.28/x
  3. Step 3: Cross multiply
    1,961,131.05x = 2,940,011.79 × 681,572.28
  4. Step 4: Simplify right side
    1,961,131.05x = 2,003,830,538,937.18
  5. Step 5: Solve for x
    x = 2,003,830,538,937.18/1,961,131.05
  6. Step 6: Final answer
    x = 1,021,772.89

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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.