Home / 436,211.10-654,316.62-120,659.79

Finding the Fourth Proportional to 436,211.10, 654,316.62 and 120,659.79

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Solution

The fourth proportional to 436,211.10, 654,316.62 and 120,659.79 is: 180,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,211.10 : 654,316.62 = 120,659.79 : x
  2. Step 2: Convert to fraction form
    436,211.10/654,316.62 = 120,659.79/x
  3. Step 3: Cross multiply
    436,211.10x = 654,316.62 × 120,659.79
  4. Step 4: Simplify right side
    436,211.10x = 78,949,705,962.71
  5. Step 5: Solve for x
    x = 78,949,705,962.71/436,211.10
  6. Step 6: Final answer
    x = 180,989.68

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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.