Home / 436,023-653,958.90-120,395.16

Finding the Fourth Proportional to 436,023, 653,958.90 and 120,395.16

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Solution

The fourth proportional to 436,023, 653,958.90 and 120,395.16 is: 180,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,023 : 653,958.90 = 120,395.16 : x
  2. Step 2: Convert to fraction form
    436,023/653,958.90 = 120,395.16/x
  3. Step 3: Cross multiply
    436,023x = 653,958.90 × 120,395.16
  4. Step 4: Simplify right side
    436,023x = 78,733,486,398.92
  5. Step 5: Solve for x
    x = 78,733,486,398.92/436,023
  6. Step 6: Final answer
    x = 180,571.87

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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.