Home / 327,413.76-491,120.64-216,579.84

Finding the Fourth Proportional to 327,413.76, 491,120.64 and 216,579.84

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Solution

The fourth proportional to 327,413.76, 491,120.64 and 216,579.84 is: 324,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,413.76 : 491,120.64 = 216,579.84 : x
  2. Step 2: Convert to fraction form
    327,413.76/491,120.64 = 216,579.84/x
  3. Step 3: Cross multiply
    327,413.76x = 491,120.64 × 216,579.84
  4. Step 4: Simplify right side
    327,413.76x = 106,366,829,631.90
  5. Step 5: Solve for x
    x = 106,366,829,631.90/327,413.76
  6. Step 6: Final answer
    x = 324,869.76

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1.5x scale

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.