Home / 852,322.50-1,278,486.18-221,241.78

Finding the Fourth Proportional to 852,322.50, 1,278,486.18 and 221,241.78

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Solution

The fourth proportional to 852,322.50, 1,278,486.18 and 221,241.78 is: 331,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,322.50 : 1,278,486.18 = 221,241.78 : x
  2. Step 2: Convert to fraction form
    852,322.50/1,278,486.18 = 221,241.78/x
  3. Step 3: Cross multiply
    852,322.50x = 1,278,486.18 × 221,241.78
  4. Step 4: Simplify right side
    852,322.50x = 282,854,558,168.60
  5. Step 5: Solve for x
    x = 282,854,558,168.60/852,322.50
  6. Step 6: Final answer
    x = 331,863.30

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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.