Home / 1,366,412.40-2,049,667.20-419,781.60

Finding the Fourth Proportional to 1,366,412.40, 2,049,667.20 and 419,781.60

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Solution

The fourth proportional to 1,366,412.40, 2,049,667.20 and 419,781.60 is: 629,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,412.40 : 2,049,667.20 = 419,781.60 : x
  2. Step 2: Convert to fraction form
    1,366,412.40/2,049,667.20 = 419,781.60/x
  3. Step 3: Cross multiply
    1,366,412.40x = 2,049,667.20 × 419,781.60
  4. Step 4: Simplify right side
    1,366,412.40x = 860,412,576,683.52
  5. Step 5: Solve for x
    x = 860,412,576,683.52/1,366,412.40
  6. Step 6: Final answer
    x = 629,687.33

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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.