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Finding the Fourth Proportional to 578,898.60, 798,871.32 and 324,258.90

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Solution

The fourth proportional to 578,898.60, 798,871.32 and 324,258.90 is: 447,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,898.60 : 798,871.32 = 324,258.90 : x
  2. Step 2: Convert to fraction form
    578,898.60/798,871.32 = 324,258.90/x
  3. Step 3: Cross multiply
    578,898.60x = 798,871.32 × 324,258.90
  4. Step 4: Simplify right side
    578,898.60x = 259,041,135,464.75
  5. Step 5: Solve for x
    x = 259,041,135,464.75/578,898.60
  6. Step 6: Final answer
    x = 447,472.38

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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.