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Finding the Fourth Proportional to 857,992.32, 1,286,223.69 and 325,887

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Solution

The fourth proportional to 857,992.32, 1,286,223.69 and 325,887 is: 488,540.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,992.32 : 1,286,223.69 = 325,887 : x
  2. Step 2: Convert to fraction form
    857,992.32/1,286,223.69 = 325,887/x
  3. Step 3: Cross multiply
    857,992.32x = 1,286,223.69 × 325,887
  4. Step 4: Simplify right side
    857,992.32x = 419,163,579,663.03
  5. Step 5: Solve for x
    x = 419,163,579,663.03/857,992.32
  6. Step 6: Final answer
    x = 488,540.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.