Home / 856,412.60-1,284,230.10-323,756.60

Finding the Fourth Proportional to 856,412.60, 1,284,230.10 and 323,756.60

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Solution

The fourth proportional to 856,412.60, 1,284,230.10 and 323,756.60 is: 485,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,412.60 : 1,284,230.10 = 323,756.60 : x
  2. Step 2: Convert to fraction form
    856,412.60/1,284,230.10 = 323,756.60/x
  3. Step 3: Cross multiply
    856,412.60x = 1,284,230.10 × 323,756.60
  4. Step 4: Simplify right side
    856,412.60x = 415,777,970,793.66
  5. Step 5: Solve for x
    x = 415,777,970,793.66/856,412.60
  6. Step 6: Final answer
    x = 485,487.92

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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.