Home / 802,160.73-1,203,242.72-328,761.09

Finding the Fourth Proportional to 802,160.73, 1,203,242.72 and 328,761.09

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Solution

The fourth proportional to 802,160.73, 1,203,242.72 and 328,761.09 is: 493,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,160.73 : 1,203,242.72 = 328,761.09 : x
  2. Step 2: Convert to fraction form
    802,160.73/1,203,242.72 = 328,761.09/x
  3. Step 3: Cross multiply
    802,160.73x = 1,203,242.72 × 328,761.09
  4. Step 4: Simplify right side
    802,160.73x = 395,579,386,517.96
  5. Step 5: Solve for x
    x = 395,579,386,517.96/802,160.73
  6. Step 6: Final answer
    x = 493,142.30

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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.