Home / 658,917.82-988,438.30-185,602.42

Finding the Fourth Proportional to 658,917.82, 988,438.30 and 185,602.42

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Solution

The fourth proportional to 658,917.82, 988,438.30 and 185,602.42 is: 278,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,917.82 : 988,438.30 = 185,602.42 : x
  2. Step 2: Convert to fraction form
    658,917.82/988,438.30 = 185,602.42/x
  3. Step 3: Cross multiply
    658,917.82x = 988,438.30 × 185,602.42
  4. Step 4: Simplify right side
    658,917.82x = 183,456,540,500.69
  5. Step 5: Solve for x
    x = 183,456,540,500.69/658,917.82
  6. Step 6: Final answer
    x = 278,420.97

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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.