Home / 435,997.23-653,989.37-120,447.15

Finding the Fourth Proportional to 435,997.23, 653,989.37 and 120,447.15

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Solution

The fourth proportional to 435,997.23, 653,989.37 and 120,447.15 is: 180,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,997.23 : 653,989.37 = 120,447.15 : x
  2. Step 2: Convert to fraction form
    435,997.23/653,989.37 = 120,447.15/x
  3. Step 3: Cross multiply
    435,997.23x = 653,989.37 × 120,447.15
  4. Step 4: Simplify right side
    435,997.23x = 78,771,155,144.56
  5. Step 5: Solve for x
    x = 78,771,155,144.56/435,997.23
  6. Step 6: Final answer
    x = 180,668.93

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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.