Home / 1,376,034.78-1,898,991.03-764,190.25

Finding the Fourth Proportional to 1,376,034.78, 1,898,991.03 and 764,190.25

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Solution

The fourth proportional to 1,376,034.78, 1,898,991.03 and 764,190.25 is: 1,054,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,034.78 : 1,898,991.03 = 764,190.25 : x
  2. Step 2: Convert to fraction form
    1,376,034.78/1,898,991.03 = 764,190.25/x
  3. Step 3: Cross multiply
    1,376,034.78x = 1,898,991.03 × 764,190.25
  4. Step 4: Simplify right side
    1,376,034.78x = 1,451,190,428,081.69
  5. Step 5: Solve for x
    x = 1,451,190,428,081.69/1,376,034.78
  6. Step 6: Final answer
    x = 1,054,617.55

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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.