Home / 481,111.60-721,667.40-231,818.80

Finding the Fourth Proportional to 481,111.60, 721,667.40 and 231,818.80

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Solution

The fourth proportional to 481,111.60, 721,667.40 and 231,818.80 is: 347,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,111.60 : 721,667.40 = 231,818.80 : x
  2. Step 2: Convert to fraction form
    481,111.60/721,667.40 = 231,818.80/x
  3. Step 3: Cross multiply
    481,111.60x = 721,667.40 × 231,818.80
  4. Step 4: Simplify right side
    481,111.60x = 167,296,070,667.12
  5. Step 5: Solve for x
    x = 167,296,070,667.12/481,111.60
  6. Step 6: Final answer
    x = 347,728.20

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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.