Home / 809,826.32-1,117,568.76-447,259.39

Finding the Fourth Proportional to 809,826.32, 1,117,568.76 and 447,259.39

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Solution

The fourth proportional to 809,826.32, 1,117,568.76 and 447,259.39 is: 617,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,826.32 : 1,117,568.76 = 447,259.39 : x
  2. Step 2: Convert to fraction form
    809,826.32/1,117,568.76 = 447,259.39/x
  3. Step 3: Cross multiply
    809,826.32x = 1,117,568.76 × 447,259.39
  4. Step 4: Simplify right side
    809,826.32x = 499,843,121,880.66
  5. Step 5: Solve for x
    x = 499,843,121,880.66/809,826.32
  6. Step 6: Final answer
    x = 617,222.62

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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.