Home / 1,320,112.75-1,979,851.97-609,458.03

Finding the Fourth Proportional to 1,320,112.75, 1,979,851.97 and 609,458.03

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Solution

The fourth proportional to 1,320,112.75, 1,979,851.97 and 609,458.03 is: 914,040.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,112.75 : 1,979,851.97 = 609,458.03 : x
  2. Step 2: Convert to fraction form
    1,320,112.75/1,979,851.97 = 609,458.03/x
  3. Step 3: Cross multiply
    1,320,112.75x = 1,979,851.97 × 609,458.03
  4. Step 4: Simplify right side
    1,320,112.75x = 1,206,636,678,280.53
  5. Step 5: Solve for x
    x = 1,206,636,678,280.53/1,320,112.75
  6. Step 6: Final answer
    x = 914,040.62

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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.