Home / 1,377,853.85-1,901,330.64-765,969.37

Finding the Fourth Proportional to 1,377,853.85, 1,901,330.64 and 765,969.37

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Solution

The fourth proportional to 1,377,853.85, 1,901,330.64 and 765,969.37 is: 1,056,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,853.85 : 1,901,330.64 = 765,969.37 : x
  2. Step 2: Convert to fraction form
    1,377,853.85/1,901,330.64 = 765,969.37/x
  3. Step 3: Cross multiply
    1,377,853.85x = 1,901,330.64 × 765,969.37
  4. Step 4: Simplify right side
    1,377,853.85x = 1,456,361,043,252.19
  5. Step 5: Solve for x
    x = 1,456,361,043,252.19/1,377,853.85
  6. Step 6: Final answer
    x = 1,056,977.88

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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.