Home / 856,504.80-1,283,422.80-323,735.20

Finding the Fourth Proportional to 856,504.80, 1,283,422.80 and 323,735.20

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Solution

The fourth proportional to 856,504.80, 1,283,422.80 and 323,735.20 is: 485,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,504.80 : 1,283,422.80 = 323,735.20 : x
  2. Step 2: Convert to fraction form
    856,504.80/1,283,422.80 = 323,735.20/x
  3. Step 3: Cross multiply
    856,504.80x = 1,283,422.80 × 323,735.20
  4. Step 4: Simplify right side
    856,504.80x = 415,489,136,842.56
  5. Step 5: Solve for x
    x = 415,489,136,842.56/856,504.80
  6. Step 6: Final answer
    x = 485,098.43

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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.