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Finding the Fourth Proportional to 666,050.91, 998,813.39 and 266,617.23

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Solution

The fourth proportional to 666,050.91, 998,813.39 and 266,617.23 is: 399,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,050.91 : 998,813.39 = 266,617.23 : x
  2. Step 2: Convert to fraction form
    666,050.91/998,813.39 = 266,617.23/x
  3. Step 3: Cross multiply
    666,050.91x = 998,813.39 × 266,617.23
  4. Step 4: Simplify right side
    666,050.91x = 266,300,857,995.62
  5. Step 5: Solve for x
    x = 266,300,857,995.62/666,050.91
  6. Step 6: Final answer
    x = 399,820.58

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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.