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Finding the Fourth Proportional to 415,634.80, 623,452.20 and 364,313.20

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Solution

The fourth proportional to 415,634.80, 623,452.20 and 364,313.20 is: 546,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,634.80 : 623,452.20 = 364,313.20 : x
  2. Step 2: Convert to fraction form
    415,634.80/623,452.20 = 364,313.20/x
  3. Step 3: Cross multiply
    415,634.80x = 623,452.20 × 364,313.20
  4. Step 4: Simplify right side
    415,634.80x = 227,131,866,029.04
  5. Step 5: Solve for x
    x = 227,131,866,029.04/415,634.80
  6. Step 6: Final answer
    x = 546,469.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.