Home / 857,143.68-1,285,895.33-324,652.92

Finding the Fourth Proportional to 857,143.68, 1,285,895.33 and 324,652.92

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Solution

The fourth proportional to 857,143.68, 1,285,895.33 and 324,652.92 is: 487,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,143.68 : 1,285,895.33 = 324,652.92 : x
  2. Step 2: Convert to fraction form
    857,143.68/1,285,895.33 = 324,652.92/x
  3. Step 3: Cross multiply
    857,143.68x = 1,285,895.33 × 324,652.92
  4. Step 4: Simplify right side
    857,143.68x = 417,469,673,698.86
  5. Step 5: Solve for x
    x = 417,469,673,698.86/857,143.68
  6. Step 6: Final answer
    x = 487,047.49

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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.