Home / 2,765,327.60-4,147,991.40-872,649.20

Finding the Fourth Proportional to 2,765,327.60, 4,147,991.40 and 872,649.20

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Solution

The fourth proportional to 2,765,327.60, 4,147,991.40 and 872,649.20 is: 1,308,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,327.60 : 4,147,991.40 = 872,649.20 : x
  2. Step 2: Convert to fraction form
    2,765,327.60/4,147,991.40 = 872,649.20/x
  3. Step 3: Cross multiply
    2,765,327.60x = 4,147,991.40 × 872,649.20
  4. Step 4: Simplify right side
    2,765,327.60x = 3,619,741,376,816.88
  5. Step 5: Solve for x
    x = 3,619,741,376,816.88/2,765,327.60
  6. Step 6: Final answer
    x = 1,308,973.80

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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.