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Finding the Fourth Proportional to 666,321.02, 919,544.74 and 364,515.02

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Solution

The fourth proportional to 666,321.02, 919,544.74 and 364,515.02 is: 503,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,321.02 : 919,544.74 = 364,515.02 : x
  2. Step 2: Convert to fraction form
    666,321.02/919,544.74 = 364,515.02/x
  3. Step 3: Cross multiply
    666,321.02x = 919,544.74 × 364,515.02
  4. Step 4: Simplify right side
    666,321.02x = 335,187,869,292.00
  5. Step 5: Solve for x
    x = 335,187,869,292.00/666,321.02
  6. Step 6: Final answer
    x = 503,042.62

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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.