Home / 412,932.78-619,340.85-132,413.58

Finding the Fourth Proportional to 412,932.78, 619,340.85 and 132,413.58

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Solution

The fourth proportional to 412,932.78, 619,340.85 and 132,413.58 is: 198,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,932.78 : 619,340.85 = 132,413.58 : x
  2. Step 2: Convert to fraction form
    412,932.78/619,340.85 = 132,413.58/x
  3. Step 3: Cross multiply
    412,932.78x = 619,340.85 × 132,413.58
  4. Step 4: Simplify right side
    412,932.78x = 82,009,139,188.74
  5. Step 5: Solve for x
    x = 82,009,139,188.74/412,932.78
  6. Step 6: Final answer
    x = 198,601.67

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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.