Home / 497,739.20-746,704.80-213,425.60

Finding the Fourth Proportional to 497,739.20, 746,704.80 and 213,425.60

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Solution

The fourth proportional to 497,739.20, 746,704.80 and 213,425.60 is: 320,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,739.20 : 746,704.80 = 213,425.60 : x
  2. Step 2: Convert to fraction form
    497,739.20/746,704.80 = 213,425.60/x
  3. Step 3: Cross multiply
    497,739.20x = 746,704.80 × 213,425.60
  4. Step 4: Simplify right side
    497,739.20x = 159,365,919,962.88
  5. Step 5: Solve for x
    x = 159,365,919,962.88/497,739.20
  6. Step 6: Final answer
    x = 320,179.56

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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.