Home / 1,412,628.78-2,105,635.73-1,299,254.70

Finding the Fourth Proportional to 1,412,628.78, 2,105,635.73 and 1,299,254.70

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Solution

The fourth proportional to 1,412,628.78, 2,105,635.73 and 1,299,254.70 is: 1,936,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,628.78 : 2,105,635.73 = 1,299,254.70 : x
  2. Step 2: Convert to fraction form
    1,412,628.78/2,105,635.73 = 1,299,254.70/x
  3. Step 3: Cross multiply
    1,412,628.78x = 2,105,635.73 × 1,299,254.70
  4. Step 4: Simplify right side
    1,412,628.78x = 2,735,757,112,194.16
  5. Step 5: Solve for x
    x = 2,735,757,112,194.16/1,412,628.78
  6. Step 6: Final answer
    x = 1,936,642.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.