Home / 1,202,480.85-1,659,450.45-686,224.47

Finding the Fourth Proportional to 1,202,480.85, 1,659,450.45 and 686,224.47

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Solution

The fourth proportional to 1,202,480.85, 1,659,450.45 and 686,224.47 is: 947,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,480.85 : 1,659,450.45 = 686,224.47 : x
  2. Step 2: Convert to fraction form
    1,202,480.85/1,659,450.45 = 686,224.47/x
  3. Step 3: Cross multiply
    1,202,480.85x = 1,659,450.45 × 686,224.47
  4. Step 4: Simplify right side
    1,202,480.85x = 1,138,755,505,542.51
  5. Step 5: Solve for x
    x = 1,138,755,505,542.51/1,202,480.85
  6. Step 6: Final answer
    x = 947,005.11

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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.