Home / 320,723.60-480,753.20-263,967.38

Finding the Fourth Proportional to 320,723.60, 480,753.20 and 263,967.38

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Solution

The fourth proportional to 320,723.60, 480,753.20 and 263,967.38 is: 395,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,723.60 : 480,753.20 = 263,967.38 : x
  2. Step 2: Convert to fraction form
    320,723.60/480,753.20 = 263,967.38/x
  3. Step 3: Cross multiply
    320,723.60x = 480,753.20 × 263,967.38
  4. Step 4: Simplify right side
    320,723.60x = 126,903,160,886.77
  5. Step 5: Solve for x
    x = 126,903,160,886.77/320,723.60
  6. Step 6: Final answer
    x = 395,677.66

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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.