Home / 1,961,129.55-2,940,009.54-681,570.78

Finding the Fourth Proportional to 1,961,129.55, 2,940,009.54 and 681,570.78

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Solution

The fourth proportional to 1,961,129.55, 2,940,009.54 and 681,570.78 is: 1,021,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,129.55 : 2,940,009.54 = 681,570.78 : x
  2. Step 2: Convert to fraction form
    1,961,129.55/2,940,009.54 = 681,570.78/x
  3. Step 3: Cross multiply
    1,961,129.55x = 2,940,009.54 × 681,570.78
  4. Step 4: Simplify right side
    1,961,129.55x = 2,003,824,595,385.24
  5. Step 5: Solve for x
    x = 2,003,824,595,385.24/1,961,129.55
  6. Step 6: Final answer
    x = 1,021,770.64

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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.