Home / 1,335,273.60-2,002,910.40-978,355.20

Finding the Fourth Proportional to 1,335,273.60, 2,002,910.40 and 978,355.20

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Solution

The fourth proportional to 1,335,273.60, 2,002,910.40 and 978,355.20 is: 1,467,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,273.60 : 2,002,910.40 = 978,355.20 : x
  2. Step 2: Convert to fraction form
    1,335,273.60/2,002,910.40 = 978,355.20/x
  3. Step 3: Cross multiply
    1,335,273.60x = 2,002,910.40 × 978,355.20
  4. Step 4: Simplify right side
    1,335,273.60x = 1,959,557,804,974.08
  5. Step 5: Solve for x
    x = 1,959,557,804,974.08/1,335,273.60
  6. Step 6: Final answer
    x = 1,467,532.80

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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.