Home / 1,268,027.20-1,902,127.20-403,393.60

Finding the Fourth Proportional to 1,268,027.20, 1,902,127.20 and 403,393.60

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Solution

The fourth proportional to 1,268,027.20, 1,902,127.20 and 403,393.60 is: 605,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,027.20 : 1,902,127.20 = 403,393.60 : x
  2. Step 2: Convert to fraction form
    1,268,027.20/1,902,127.20 = 403,393.60/x
  3. Step 3: Cross multiply
    1,268,027.20x = 1,902,127.20 × 403,393.60
  4. Step 4: Simplify right side
    1,268,027.20x = 767,305,938,865.92
  5. Step 5: Solve for x
    x = 767,305,938,865.92/1,268,027.20
  6. Step 6: Final answer
    x = 605,117.89

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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.