Home / 436,489.46-654,543.28-220,215.09

Finding the Fourth Proportional to 436,489.46, 654,543.28 and 220,215.09

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Solution

The fourth proportional to 436,489.46, 654,543.28 and 220,215.09 is: 330,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,489.46 : 654,543.28 = 220,215.09 : x
  2. Step 2: Convert to fraction form
    436,489.46/654,543.28 = 220,215.09/x
  3. Step 3: Cross multiply
    436,489.46x = 654,543.28 × 220,215.09
  4. Step 4: Simplify right side
    436,489.46x = 144,140,307,314.10
  5. Step 5: Solve for x
    x = 144,140,307,314.10/436,489.46
  6. Step 6: Final answer
    x = 330,226.32

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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.