Home / 436,327.90-654,418.94-120,816.70

Finding the Fourth Proportional to 436,327.90, 654,418.94 and 120,816.70

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Solution

The fourth proportional to 436,327.90, 654,418.94 and 120,816.70 is: 181,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,327.90 : 654,418.94 = 120,816.70 : x
  2. Step 2: Convert to fraction form
    436,327.90/654,418.94 = 120,816.70/x
  3. Step 3: Cross multiply
    436,327.90x = 654,418.94 × 120,816.70
  4. Step 4: Simplify right side
    436,327.90x = 79,064,736,748.30
  5. Step 5: Solve for x
    x = 79,064,736,748.30/436,327.90
  6. Step 6: Final answer
    x = 181,204.86

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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.