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Finding the Fourth Proportional to 578,311.35, 798,069.56 and 323,662.55

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Solution

The fourth proportional to 578,311.35, 798,069.56 and 323,662.55 is: 446,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,311.35 : 798,069.56 = 323,662.55 : x
  2. Step 2: Convert to fraction form
    578,311.35/798,069.56 = 323,662.55/x
  3. Step 3: Cross multiply
    578,311.35x = 798,069.56 × 323,662.55
  4. Step 4: Simplify right side
    578,311.35x = 258,305,223,258.32
  5. Step 5: Solve for x
    x = 258,305,223,258.32/578,311.35
  6. Step 6: Final answer
    x = 446,654.25

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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.