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Finding the Fourth Proportional to 481,620.60, 664,641.24 and 290,597.16

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Solution

The fourth proportional to 481,620.60, 664,641.24 and 290,597.16 is: 401,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,620.60 : 664,641.24 = 290,597.16 : x
  2. Step 2: Convert to fraction form
    481,620.60/664,641.24 = 290,597.16/x
  3. Step 3: Cross multiply
    481,620.60x = 664,641.24 × 290,597.16
  4. Step 4: Simplify right side
    481,620.60x = 193,142,856,762.88
  5. Step 5: Solve for x
    x = 193,142,856,762.88/481,620.60
  6. Step 6: Final answer
    x = 401,026.98

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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.