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Finding the Fourth Proportional to 881,644.78, 1,322,591.71 and 282,465.78

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Solution

The fourth proportional to 881,644.78, 1,322,591.71 and 282,465.78 is: 423,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,644.78 : 1,322,591.71 = 282,465.78 : x
  2. Step 2: Convert to fraction form
    881,644.78/1,322,591.71 = 282,465.78/x
  3. Step 3: Cross multiply
    881,644.78x = 1,322,591.71 × 282,465.78
  4. Step 4: Simplify right side
    881,644.78x = 373,586,892,373.73
  5. Step 5: Solve for x
    x = 373,586,892,373.73/881,644.78
  6. Step 6: Final answer
    x = 423,738.56

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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.