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Finding the Fourth Proportional to 609,830.70, 914,891.40 and 210,474.96

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Solution

The fourth proportional to 609,830.70, 914,891.40 and 210,474.96 is: 315,762.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,830.70 : 914,891.40 = 210,474.96 : x
  2. Step 2: Convert to fraction form
    609,830.70/914,891.40 = 210,474.96/x
  3. Step 3: Cross multiply
    609,830.70x = 914,891.40 × 210,474.96
  4. Step 4: Simplify right side
    609,830.70x = 192,561,730,819.34
  5. Step 5: Solve for x
    x = 192,561,730,819.34/609,830.70
  6. Step 6: Final answer
    x = 315,762.61

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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.