Home / 857,989.31-1,286,219.20-325,884.01

Finding the Fourth Proportional to 857,989.31, 1,286,219.20 and 325,884.01

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Solution

The fourth proportional to 857,989.31, 1,286,219.20 and 325,884.01 is: 488,535.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,989.31 : 1,286,219.20 = 325,884.01 : x
  2. Step 2: Convert to fraction form
    857,989.31/1,286,219.20 = 325,884.01/x
  3. Step 3: Cross multiply
    857,989.31x = 1,286,219.20 × 325,884.01
  4. Step 4: Simplify right side
    857,989.31x = 419,158,269,627.43
  5. Step 5: Solve for x
    x = 419,158,269,627.43/857,989.31
  6. Step 6: Final answer
    x = 488,535.54

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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.