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Finding the Fourth Proportional to 523,987.92, 723,103.20 and 285,523.92

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Solution

The fourth proportional to 523,987.92, 723,103.20 and 285,523.92 is: 394,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,987.92 : 723,103.20 = 285,523.92 : x
  2. Step 2: Convert to fraction form
    523,987.92/723,103.20 = 285,523.92/x
  3. Step 3: Cross multiply
    523,987.92x = 723,103.20 × 285,523.92
  4. Step 4: Simplify right side
    523,987.92x = 206,463,260,228.54
  5. Step 5: Solve for x
    x = 206,463,260,228.54/523,987.92
  6. Step 6: Final answer
    x = 394,022.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.