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Finding the Fourth Proportional to 666,292.50, 919,505.59 and 364,486.50

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Solution

The fourth proportional to 666,292.50, 919,505.59 and 364,486.50 is: 503,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,292.50 : 919,505.59 = 364,486.50 : x
  2. Step 2: Convert to fraction form
    666,292.50/919,505.59 = 364,486.50/x
  3. Step 3: Cross multiply
    666,292.50x = 919,505.59 × 364,486.50
  4. Step 4: Simplify right side
    666,292.50x = 335,147,373,318.32
  5. Step 5: Solve for x
    x = 335,147,373,318.32/666,292.50
  6. Step 6: Final answer
    x = 503,003.37

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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.