Home / 1,384,840.35-1,908,791.82-925,787.21

Finding the Fourth Proportional to 1,384,840.35, 1,908,791.82 and 925,787.21

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Solution

The fourth proportional to 1,384,840.35, 1,908,791.82 and 925,787.21 is: 1,276,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,840.35 : 1,908,791.82 = 925,787.21 : x
  2. Step 2: Convert to fraction form
    1,384,840.35/1,908,791.82 = 925,787.21/x
  3. Step 3: Cross multiply
    1,384,840.35x = 1,908,791.82 × 925,787.21
  4. Step 4: Simplify right side
    1,384,840.35x = 1,767,135,043,964.66
  5. Step 5: Solve for x
    x = 1,767,135,043,964.66/1,384,840.35
  6. Step 6: Final answer
    x = 1,276,056.87

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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.