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Finding the Fourth Proportional to 666,201.36, 919,379.64 and 364,395.12

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Solution

The fourth proportional to 666,201.36, 919,379.64 and 364,395.12 is: 502,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,201.36 : 919,379.64 = 364,395.12 : x
  2. Step 2: Convert to fraction form
    666,201.36/919,379.64 = 364,395.12/x
  3. Step 3: Cross multiply
    666,201.36x = 919,379.64 × 364,395.12
  4. Step 4: Simplify right side
    666,201.36x = 335,017,454,243.36
  5. Step 5: Solve for x
    x = 335,017,454,243.36/666,201.36
  6. Step 6: Final answer
    x = 502,877.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.