Home / 728,353.38-1,092,489.87-222,913.98

Finding the Fourth Proportional to 728,353.38, 1,092,489.87 and 222,913.98

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Solution

The fourth proportional to 728,353.38, 1,092,489.87 and 222,913.98 is: 334,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,353.38 : 1,092,489.87 = 222,913.98 : x
  2. Step 2: Convert to fraction form
    728,353.38/1,092,489.87 = 222,913.98/x
  3. Step 3: Cross multiply
    728,353.38x = 1,092,489.87 × 222,913.98
  4. Step 4: Simplify right side
    728,353.38x = 243,531,265,031.38
  5. Step 5: Solve for x
    x = 243,531,265,031.38/728,353.38
  6. Step 6: Final answer
    x = 334,358.67

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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.