Home / 465,318.90-641,976.50-304,268.22

Finding the Fourth Proportional to 465,318.90, 641,976.50 and 304,268.22

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Solution

The fourth proportional to 465,318.90, 641,976.50 and 304,268.22 is: 419,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,318.90 : 641,976.50 = 304,268.22 : x
  2. Step 2: Convert to fraction form
    465,318.90/641,976.50 = 304,268.22/x
  3. Step 3: Cross multiply
    465,318.90x = 641,976.50 × 304,268.22
  4. Step 4: Simplify right side
    465,318.90x = 195,333,046,936.83
  5. Step 5: Solve for x
    x = 195,333,046,936.83/465,318.90
  6. Step 6: Final answer
    x = 419,783.18

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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.