Home / 641,831.36-962,435.16-321,845.84

Finding the Fourth Proportional to 641,831.36, 962,435.16 and 321,845.84

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Solution

The fourth proportional to 641,831.36, 962,435.16 and 321,845.84 is: 482,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,831.36 : 962,435.16 = 321,845.84 : x
  2. Step 2: Convert to fraction form
    641,831.36/962,435.16 = 321,845.84/x
  3. Step 3: Cross multiply
    641,831.36x = 962,435.16 × 321,845.84
  4. Step 4: Simplify right side
    641,831.36x = 309,755,752,515.73
  5. Step 5: Solve for x
    x = 309,755,752,515.73/641,831.36
  6. Step 6: Final answer
    x = 482,612.37

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1.5x scale

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.