Home / 1,291,922.64-1,781,005.56-908,760.24

Finding the Fourth Proportional to 1,291,922.64, 1,781,005.56 and 908,760.24

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Solution

The fourth proportional to 1,291,922.64, 1,781,005.56 and 908,760.24 is: 1,252,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,922.64 : 1,781,005.56 = 908,760.24 : x
  2. Step 2: Convert to fraction form
    1,291,922.64/1,781,005.56 = 908,760.24/x
  3. Step 3: Cross multiply
    1,291,922.64x = 1,781,005.56 × 908,760.24
  4. Step 4: Simplify right side
    1,291,922.64x = 1,618,507,040,146.93
  5. Step 5: Solve for x
    x = 1,618,507,040,146.93/1,291,922.64
  6. Step 6: Final answer
    x = 1,252,789.44

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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.