Home / 436,311.96-654,482.25-120,742.44

Finding the Fourth Proportional to 436,311.96, 654,482.25 and 120,742.44

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Solution

The fourth proportional to 436,311.96, 654,482.25 and 120,742.44 is: 181,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,311.96 : 654,482.25 = 120,742.44 : x
  2. Step 2: Convert to fraction form
    436,311.96/654,482.25 = 120,742.44/x
  3. Step 3: Cross multiply
    436,311.96x = 654,482.25 × 120,742.44
  4. Step 4: Simplify right side
    436,311.96x = 79,023,783,801.69
  5. Step 5: Solve for x
    x = 79,023,783,801.69/436,311.96
  6. Step 6: Final answer
    x = 181,117.62

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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.