Home / 1,218,438.48-1,827,853.56-419,523.60

Finding the Fourth Proportional to 1,218,438.48, 1,827,853.56 and 419,523.60

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Solution

The fourth proportional to 1,218,438.48, 1,827,853.56 and 419,523.60 is: 629,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,438.48 : 1,827,853.56 = 419,523.60 : x
  2. Step 2: Convert to fraction form
    1,218,438.48/1,827,853.56 = 419,523.60/x
  3. Step 3: Cross multiply
    1,218,438.48x = 1,827,853.56 × 419,523.60
  4. Step 4: Simplify right side
    1,218,438.48x = 766,827,705,764.02
  5. Step 5: Solve for x
    x = 766,827,705,764.02/1,218,438.48
  6. Step 6: Final answer
    x = 629,352.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.