Home / 856,463.80-1,283,361.30-323,694.20

Finding the Fourth Proportional to 856,463.80, 1,283,361.30 and 323,694.20

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Solution

The fourth proportional to 856,463.80, 1,283,361.30 and 323,694.20 is: 485,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,463.80 : 1,283,361.30 = 323,694.20 : x
  2. Step 2: Convert to fraction form
    856,463.80/1,283,361.30 = 323,694.20/x
  3. Step 3: Cross multiply
    856,463.80x = 1,283,361.30 × 323,694.20
  4. Step 4: Simplify right side
    856,463.80x = 415,416,609,314.46
  5. Step 5: Solve for x
    x = 415,416,609,314.46/856,463.80
  6. Step 6: Final answer
    x = 485,036.97

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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.