Home / 485,989.03-729,308.93-201,679.86

Finding the Fourth Proportional to 485,989.03, 729,308.93 and 201,679.86

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Solution

The fourth proportional to 485,989.03, 729,308.93 and 201,679.86 is: 302,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,989.03 : 729,308.93 = 201,679.86 : x
  2. Step 2: Convert to fraction form
    485,989.03/729,308.93 = 201,679.86/x
  3. Step 3: Cross multiply
    485,989.03x = 729,308.93 × 201,679.86
  4. Step 4: Simplify right side
    485,989.03x = 147,086,921,890.75
  5. Step 5: Solve for x
    x = 147,086,921,890.75/485,989.03
  6. Step 6: Final answer
    x = 302,654.82

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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.