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Finding the Fourth Proportional to 666,001.98, 919,064.07 and 364,189.50

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Solution

The fourth proportional to 666,001.98, 919,064.07 and 364,189.50 is: 502,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,001.98 : 919,064.07 = 364,189.50 : x
  2. Step 2: Convert to fraction form
    666,001.98/919,064.07 = 364,189.50/x
  3. Step 3: Cross multiply
    666,001.98x = 919,064.07 × 364,189.50
  4. Step 4: Simplify right side
    666,001.98x = 334,713,484,121.27
  5. Step 5: Solve for x
    x = 334,713,484,121.27/666,001.98
  6. Step 6: Final answer
    x = 502,571.30

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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.