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Finding the Fourth Proportional to 666,067.50, 919,195.02 and 364,261.50

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Solution

The fourth proportional to 666,067.50, 919,195.02 and 364,261.50 is: 502,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,067.50 : 919,195.02 = 364,261.50 : x
  2. Step 2: Convert to fraction form
    666,067.50/919,195.02 = 364,261.50/x
  3. Step 3: Cross multiply
    666,067.50x = 919,195.02 × 364,261.50
  4. Step 4: Simplify right side
    666,067.50x = 334,827,356,777.73
  5. Step 5: Solve for x
    x = 334,827,356,777.73/666,067.50
  6. Step 6: Final answer
    x = 502,692.83

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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.