Home / 802,812.78-1,203,919.13-322,878.59

Finding the Fourth Proportional to 802,812.78, 1,203,919.13 and 322,878.59

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Solution

The fourth proportional to 802,812.78, 1,203,919.13 and 322,878.59 is: 484,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,812.78 : 1,203,919.13 = 322,878.59 : x
  2. Step 2: Convert to fraction form
    802,812.78/1,203,919.13 = 322,878.59/x
  3. Step 3: Cross multiply
    802,812.78x = 1,203,919.13 × 322,878.59
  4. Step 4: Simplify right side
    802,812.78x = 388,719,711,168.43
  5. Step 5: Solve for x
    x = 388,719,711,168.43/802,812.78
  6. Step 6: Final answer
    x = 484,197.21

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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.