Home / 1,320,112.25-1,979,851.22-609,457.53

Finding the Fourth Proportional to 1,320,112.25, 1,979,851.22 and 609,457.53

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Solution

The fourth proportional to 1,320,112.25, 1,979,851.22 and 609,457.53 is: 914,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,112.25 : 1,979,851.22 = 609,457.53 : x
  2. Step 2: Convert to fraction form
    1,320,112.25/1,979,851.22 = 609,457.53/x
  3. Step 3: Cross multiply
    1,320,112.25x = 1,979,851.22 × 609,457.53
  4. Step 4: Simplify right side
    1,320,112.25x = 1,206,635,231,261.40
  5. Step 5: Solve for x
    x = 1,206,635,231,261.40/1,320,112.25
  6. Step 6: Final answer
    x = 914,039.87

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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.