Home / 2,661,374.40-3,992,061.60-978,259.20

Finding the Fourth Proportional to 2,661,374.40, 3,992,061.60 and 978,259.20

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Solution

The fourth proportional to 2,661,374.40, 3,992,061.60 and 978,259.20 is: 1,467,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,374.40 : 3,992,061.60 = 978,259.20 : x
  2. Step 2: Convert to fraction form
    2,661,374.40/3,992,061.60 = 978,259.20/x
  3. Step 3: Cross multiply
    2,661,374.40x = 3,992,061.60 × 978,259.20
  4. Step 4: Simplify right side
    2,661,374.40x = 3,905,270,987,166.72
  5. Step 5: Solve for x
    x = 3,905,270,987,166.72/2,661,374.40
  6. Step 6: Final answer
    x = 1,467,388.80

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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.