Home / 481,256.20-721,884.30-439,265.80

Finding the Fourth Proportional to 481,256.20, 721,884.30 and 439,265.80

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Solution

The fourth proportional to 481,256.20, 721,884.30 and 439,265.80 is: 658,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,256.20 : 721,884.30 = 439,265.80 : x
  2. Step 2: Convert to fraction form
    481,256.20/721,884.30 = 439,265.80/x
  3. Step 3: Cross multiply
    481,256.20x = 721,884.30 × 439,265.80
  4. Step 4: Simplify right side
    481,256.20x = 317,099,084,546.94
  5. Step 5: Solve for x
    x = 317,099,084,546.94/481,256.20
  6. Step 6: Final answer
    x = 658,898.70

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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.