Home / 809,400.54-1,116,981.78-446,824.58

Finding the Fourth Proportional to 809,400.54, 1,116,981.78 and 446,824.58

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Solution

The fourth proportional to 809,400.54, 1,116,981.78 and 446,824.58 is: 616,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,400.54 : 1,116,981.78 = 446,824.58 : x
  2. Step 2: Convert to fraction form
    809,400.54/1,116,981.78 = 446,824.58/x
  3. Step 3: Cross multiply
    809,400.54x = 1,116,981.78 × 446,824.58
  4. Step 4: Simplify right side
    809,400.54x = 499,094,914,716.15
  5. Step 5: Solve for x
    x = 499,094,914,716.15/809,400.54
  6. Step 6: Final answer
    x = 616,622.91

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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.