Home / 510,861.43-766,385.09-211,179.25

Finding the Fourth Proportional to 510,861.43, 766,385.09 and 211,179.25

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Solution

The fourth proportional to 510,861.43, 766,385.09 and 211,179.25 is: 316,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,861.43 : 766,385.09 = 211,179.25 : x
  2. Step 2: Convert to fraction form
    510,861.43/766,385.09 = 211,179.25/x
  3. Step 3: Cross multiply
    510,861.43x = 766,385.09 × 211,179.25
  4. Step 4: Simplify right side
    510,861.43x = 161,844,623,629.56
  5. Step 5: Solve for x
    x = 161,844,623,629.56/510,861.43
  6. Step 6: Final answer
    x = 316,807.29

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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.