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Finding the Fourth Proportional to 663,973.80, 996,090.30 and 264,546.60

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Solution

The fourth proportional to 663,973.80, 996,090.30 and 264,546.60 is: 396,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,973.80 : 996,090.30 = 264,546.60 : x
  2. Step 2: Convert to fraction form
    663,973.80/996,090.30 = 264,546.60/x
  3. Step 3: Cross multiply
    663,973.80x = 996,090.30 × 264,546.60
  4. Step 4: Simplify right side
    663,973.80x = 263,512,302,157.98
  5. Step 5: Solve for x
    x = 263,512,302,157.98/663,973.80
  6. Step 6: Final answer
    x = 396,871.54

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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.