Home / 1,225,505.02-1,691,172.66-681,629.11

Finding the Fourth Proportional to 1,225,505.02, 1,691,172.66 and 681,629.11

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Solution

The fourth proportional to 1,225,505.02, 1,691,172.66 and 681,629.11 is: 940,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,505.02 : 1,691,172.66 = 681,629.11 : x
  2. Step 2: Convert to fraction form
    1,225,505.02/1,691,172.66 = 681,629.11/x
  3. Step 3: Cross multiply
    1,225,505.02x = 1,691,172.66 × 681,629.11
  4. Step 4: Simplify right side
    1,225,505.02x = 1,152,752,515,092.13
  5. Step 5: Solve for x
    x = 1,152,752,515,092.13/1,225,505.02
  6. Step 6: Final answer
    x = 940,634.67

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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.