Home / 1,190,025.49-1,642,190.33-646,149.52

Finding the Fourth Proportional to 1,190,025.49, 1,642,190.33 and 646,149.52

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Solution

The fourth proportional to 1,190,025.49, 1,642,190.33 and 646,149.52 is: 891,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,025.49 : 1,642,190.33 = 646,149.52 : x
  2. Step 2: Convert to fraction form
    1,190,025.49/1,642,190.33 = 646,149.52/x
  3. Step 3: Cross multiply
    1,190,025.49x = 1,642,190.33 × 646,149.52
  4. Step 4: Simplify right side
    1,190,025.49x = 1,061,100,493,478.14
  5. Step 5: Solve for x
    x = 1,061,100,493,478.14/1,190,025.49
  6. Step 6: Final answer
    x = 891,661.99

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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.