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Finding the Fourth Proportional to 723,898.96, 998,993.76 and 397,228.82

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Solution

The fourth proportional to 723,898.96, 998,993.76 and 397,228.82 is: 548,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,898.96 : 998,993.76 = 397,228.82 : x
  2. Step 2: Convert to fraction form
    723,898.96/998,993.76 = 397,228.82/x
  3. Step 3: Cross multiply
    723,898.96x = 998,993.76 × 397,228.82
  4. Step 4: Simplify right side
    723,898.96x = 396,829,114,958.54
  5. Step 5: Solve for x
    x = 396,829,114,958.54/723,898.96
  6. Step 6: Final answer
    x = 548,183.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.