Home / 479,753.78-719,630.69-142,799.31

Finding the Fourth Proportional to 479,753.78, 719,630.69 and 142,799.31

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Solution

The fourth proportional to 479,753.78, 719,630.69 and 142,799.31 is: 214,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,753.78 : 719,630.69 = 142,799.31 : x
  2. Step 2: Convert to fraction form
    479,753.78/719,630.69 = 142,799.31/x
  3. Step 3: Cross multiply
    479,753.78x = 719,630.69 × 142,799.31
  4. Step 4: Simplify right side
    479,753.78x = 102,762,765,272.83
  5. Step 5: Solve for x
    x = 102,762,765,272.83/479,753.78
  6. Step 6: Final answer
    x = 214,198.97

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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.