Home / 809,404.94-1,116,982.40-446,831.78

Finding the Fourth Proportional to 809,404.94, 1,116,982.40 and 446,831.78

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Solution

The fourth proportional to 809,404.94, 1,116,982.40 and 446,831.78 is: 616,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,404.94 : 1,116,982.40 = 446,831.78 : x
  2. Step 2: Convert to fraction form
    809,404.94/1,116,982.40 = 446,831.78/x
  3. Step 3: Cross multiply
    809,404.94x = 1,116,982.40 × 446,831.78
  4. Step 4: Simplify right side
    809,404.94x = 499,103,234,020.67
  5. Step 5: Solve for x
    x = 499,103,234,020.67/809,404.94
  6. Step 6: Final answer
    x = 616,629.83

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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.