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Finding the Fourth Proportional to 666,066.66, 998,837.01 and 266,632.98

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Solution

The fourth proportional to 666,066.66, 998,837.01 and 266,632.98 is: 399,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,066.66 : 998,837.01 = 266,632.98 : x
  2. Step 2: Convert to fraction form
    666,066.66/998,837.01 = 266,632.98/x
  3. Step 3: Cross multiply
    666,066.66x = 998,837.01 × 266,632.98
  4. Step 4: Simplify right side
    666,066.66x = 266,322,888,510.59
  5. Step 5: Solve for x
    x = 266,322,888,510.59/666,066.66
  6. Step 6: Final answer
    x = 399,844.20

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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.