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Finding the Fourth Proportional to 409,620.20, 614,819.10 and 350,522.60

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Solution

The fourth proportional to 409,620.20, 614,819.10 and 350,522.60 is: 526,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,620.20 : 614,819.10 = 350,522.60 : x
  2. Step 2: Convert to fraction form
    409,620.20/614,819.10 = 350,522.60/x
  3. Step 3: Cross multiply
    409,620.20x = 614,819.10 × 350,522.60
  4. Step 4: Simplify right side
    409,620.20x = 215,507,989,461.66
  5. Step 5: Solve for x
    x = 215,507,989,461.66/409,620.20
  6. Step 6: Final answer
    x = 526,116.61

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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.