Home / 807,547.44-1,211,880.39-321,179.70

Finding the Fourth Proportional to 807,547.44, 1,211,880.39 and 321,179.70

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Solution

The fourth proportional to 807,547.44, 1,211,880.39 and 321,179.70 is: 481,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,547.44 : 1,211,880.39 = 321,179.70 : x
  2. Step 2: Convert to fraction form
    807,547.44/1,211,880.39 = 321,179.70/x
  3. Step 3: Cross multiply
    807,547.44x = 1,211,880.39 × 321,179.70
  4. Step 4: Simplify right side
    807,547.44x = 389,231,380,096.08
  5. Step 5: Solve for x
    x = 389,231,380,096.08/807,547.44
  6. Step 6: Final answer
    x = 481,991.97

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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.