Home / 666,939.87-1,000,568.97-217,661.58

Finding the Fourth Proportional to 666,939.87, 1,000,568.97 and 217,661.58

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Solution

The fourth proportional to 666,939.87, 1,000,568.97 and 217,661.58 is: 326,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,939.87 : 1,000,568.97 = 217,661.58 : x
  2. Step 2: Convert to fraction form
    666,939.87/1,000,568.97 = 217,661.58/x
  3. Step 3: Cross multiply
    666,939.87x = 1,000,568.97 × 217,661.58
  4. Step 4: Simplify right side
    666,939.87x = 217,785,422,909.17
  5. Step 5: Solve for x
    x = 217,785,422,909.17/666,939.87
  6. Step 6: Final answer
    x = 326,544.31

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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.