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Finding the Fourth Proportional to 666,318.98, 919,527.45 and 364,506.50

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Solution

The fourth proportional to 666,318.98, 919,527.45 and 364,506.50 is: 503,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,318.98 : 919,527.45 = 364,506.50 : x
  2. Step 2: Convert to fraction form
    666,318.98/919,527.45 = 364,506.50/x
  3. Step 3: Cross multiply
    666,318.98x = 919,527.45 × 364,506.50
  4. Step 4: Simplify right side
    666,318.98x = 335,173,732,453.43
  5. Step 5: Solve for x
    x = 335,173,732,453.43/666,318.98
  6. Step 6: Final answer
    x = 503,022.94

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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.