Home / 1,005,422.88-1,388,893.42-914,618.64

Finding the Fourth Proportional to 1,005,422.88, 1,388,893.42 and 914,618.64

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Solution

The fourth proportional to 1,005,422.88, 1,388,893.42 and 914,618.64 is: 1,263,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,422.88 : 1,388,893.42 = 914,618.64 : x
  2. Step 2: Convert to fraction form
    1,005,422.88/1,388,893.42 = 914,618.64/x
  3. Step 3: Cross multiply
    1,005,422.88x = 1,388,893.42 × 914,618.64
  4. Step 4: Simplify right side
    1,005,422.88x = 1,270,307,810,905.35
  5. Step 5: Solve for x
    x = 1,270,307,810,905.35/1,005,422.88
  6. Step 6: Final answer
    x = 1,263,456.24

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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.