Home / 856,500.80-1,283,416.80-323,731.20

Finding the Fourth Proportional to 856,500.80, 1,283,416.80 and 323,731.20

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Solution

The fourth proportional to 856,500.80, 1,283,416.80 and 323,731.20 is: 485,092.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,500.80 : 1,283,416.80 = 323,731.20 : x
  2. Step 2: Convert to fraction form
    856,500.80/1,283,416.80 = 323,731.20/x
  3. Step 3: Cross multiply
    856,500.80x = 1,283,416.80 × 323,731.20
  4. Step 4: Simplify right side
    856,500.80x = 415,482,060,764.16
  5. Step 5: Solve for x
    x = 415,482,060,764.16/856,500.80
  6. Step 6: Final answer
    x = 485,092.44

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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.