Home / 666,580.17-1,000,020.27-211,198.80

Finding the Fourth Proportional to 666,580.17, 1,000,020.27 and 211,198.80

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Solution

The fourth proportional to 666,580.17, 1,000,020.27 and 211,198.80 is: 316,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,580.17 : 1,000,020.27 = 211,198.80 : x
  2. Step 2: Convert to fraction form
    666,580.17/1,000,020.27 = 211,198.80/x
  3. Step 3: Cross multiply
    666,580.17x = 1,000,020.27 × 211,198.80
  4. Step 4: Simplify right side
    666,580.17x = 211,203,080,999.68
  5. Step 5: Solve for x
    x = 211,203,080,999.68/666,580.17
  6. Step 6: Final answer
    x = 316,845.73

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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.