Home / 436,214.10-654,321.12-120,662.79

Finding the Fourth Proportional to 436,214.10, 654,321.12 and 120,662.79

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Solution

The fourth proportional to 436,214.10, 654,321.12 and 120,662.79 is: 180,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,214.10 : 654,321.12 = 120,662.79 : x
  2. Step 2: Convert to fraction form
    436,214.10/654,321.12 = 120,662.79/x
  3. Step 3: Cross multiply
    436,214.10x = 654,321.12 × 120,662.79
  4. Step 4: Simplify right side
    436,214.10x = 78,952,211,895.12
  5. Step 5: Solve for x
    x = 78,952,211,895.12/436,214.10
  6. Step 6: Final answer
    x = 180,994.18

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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.