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Finding the Fourth Proportional to 857,994.32, 1,286,226.68 and 325,889

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Solution

The fourth proportional to 857,994.32, 1,286,226.68 and 325,889 is: 488,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,994.32 : 1,286,226.68 = 325,889 : x
  2. Step 2: Convert to fraction form
    857,994.32/1,286,226.68 = 325,889/x
  3. Step 3: Cross multiply
    857,994.32x = 1,286,226.68 × 325,889
  4. Step 4: Simplify right side
    857,994.32x = 419,167,126,518.52
  5. Step 5: Solve for x
    x = 419,167,126,518.52/857,994.32
  6. Step 6: Final answer
    x = 488,543.01

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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.