Home / 579,617.27-799,831.78-321,469.87

Finding the Fourth Proportional to 579,617.27, 799,831.78 and 321,469.87

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Solution

The fourth proportional to 579,617.27, 799,831.78 and 321,469.87 is: 443,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,617.27 : 799,831.78 = 321,469.87 : x
  2. Step 2: Convert to fraction form
    579,617.27/799,831.78 = 321,469.87/x
  3. Step 3: Cross multiply
    579,617.27x = 799,831.78 × 321,469.87
  4. Step 4: Simplify right side
    579,617.27x = 257,121,815,535.21
  5. Step 5: Solve for x
    x = 257,121,815,535.21/579,617.27
  6. Step 6: Final answer
    x = 443,606.20

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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.