Home / 666,761.49-1,000,040.81-217,481.76

Finding the Fourth Proportional to 666,761.49, 1,000,040.81 and 217,481.76

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Solution

The fourth proportional to 666,761.49, 1,000,040.81 and 217,481.76 is: 326,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,761.49 : 1,000,040.81 = 217,481.76 : x
  2. Step 2: Convert to fraction form
    666,761.49/1,000,040.81 = 217,481.76/x
  3. Step 3: Cross multiply
    666,761.49x = 1,000,040.81 × 217,481.76
  4. Step 4: Simplify right side
    666,761.49x = 217,490,634,343.22
  5. Step 5: Solve for x
    x = 217,490,634,343.22/666,761.49
  6. Step 6: Final answer
    x = 326,189.56

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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.