Home / 857,519.31-1,286,289.83-324,897.27

Finding the Fourth Proportional to 857,519.31, 1,286,289.83 and 324,897.27

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Solution

The fourth proportional to 857,519.31, 1,286,289.83 and 324,897.27 is: 487,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,519.31 : 1,286,289.83 = 324,897.27 : x
  2. Step 2: Convert to fraction form
    857,519.31/1,286,289.83 = 324,897.27/x
  3. Step 3: Cross multiply
    857,519.31x = 1,286,289.83 × 324,897.27
  4. Step 4: Simplify right side
    857,519.31x = 417,912,052,571.28
  5. Step 5: Solve for x
    x = 417,912,052,571.28/857,519.31
  6. Step 6: Final answer
    x = 487,350.02

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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.