Home / 1,285,106.85-1,772,877.75-741,112.47

Finding the Fourth Proportional to 1,285,106.85, 1,772,877.75 and 741,112.47

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Solution

The fourth proportional to 1,285,106.85, 1,772,877.75 and 741,112.47 is: 1,022,406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,106.85 : 1,772,877.75 = 741,112.47 : x
  2. Step 2: Convert to fraction form
    1,285,106.85/1,772,877.75 = 741,112.47/x
  3. Step 3: Cross multiply
    1,285,106.85x = 1,772,877.75 × 741,112.47
  4. Step 4: Simplify right side
    1,285,106.85x = 1,313,901,808,310.54
  5. Step 5: Solve for x
    x = 1,313,901,808,310.54/1,285,106.85
  6. Step 6: Final answer
    x = 1,022,406.66

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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.