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Finding the Fourth Proportional to 609,827.70, 914,886.90 and 210,471.96

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Solution

The fourth proportional to 609,827.70, 914,886.90 and 210,471.96 is: 315,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,827.70 : 914,886.90 = 210,471.96 : x
  2. Step 2: Convert to fraction form
    609,827.70/914,886.90 = 210,471.96/x
  3. Step 3: Cross multiply
    609,827.70x = 914,886.90 × 210,471.96
  4. Step 4: Simplify right side
    609,827.70x = 192,558,039,021.32
  5. Step 5: Solve for x
    x = 192,558,039,021.32/609,827.70
  6. Step 6: Final answer
    x = 315,758.11

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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.