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Finding the Fourth Proportional to 666,637.60, 919,952.40 and 364,828

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Solution

The fourth proportional to 666,637.60, 919,952.40 and 364,828 is: 503,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,637.60 : 919,952.40 = 364,828 : x
  2. Step 2: Convert to fraction form
    666,637.60/919,952.40 = 364,828/x
  3. Step 3: Cross multiply
    666,637.60x = 919,952.40 × 364,828
  4. Step 4: Simplify right side
    666,637.60x = 335,624,394,187.20
  5. Step 5: Solve for x
    x = 335,624,394,187.20/666,637.60
  6. Step 6: Final answer
    x = 503,458.54

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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.