Home / 2,238,712.75-3,089,507.03-1,272,006.78

Finding the Fourth Proportional to 2,238,712.75, 3,089,507.03 and 1,272,006.78

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Solution

The fourth proportional to 2,238,712.75, 3,089,507.03 and 1,272,006.78 is: 1,755,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238,712.75 : 3,089,507.03 = 1,272,006.78 : x
  2. Step 2: Convert to fraction form
    2,238,712.75/3,089,507.03 = 1,272,006.78/x
  3. Step 3: Cross multiply
    2,238,712.75x = 3,089,507.03 × 1,272,006.78
  4. Step 4: Simplify right side
    2,238,712.75x = 3,929,873,889,017.66
  5. Step 5: Solve for x
    x = 3,929,873,889,017.66/2,238,712.75
  6. Step 6: Final answer
    x = 1,755,416.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.