Home / 1,202,479.85-1,659,449.07-686,223.47

Finding the Fourth Proportional to 1,202,479.85, 1,659,449.07 and 686,223.47

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Solution

The fourth proportional to 1,202,479.85, 1,659,449.07 and 686,223.47 is: 947,003.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,479.85 : 1,659,449.07 = 686,223.47 : x
  2. Step 2: Convert to fraction form
    1,202,479.85/1,659,449.07 = 686,223.47/x
  3. Step 3: Cross multiply
    1,202,479.85x = 1,659,449.07 × 686,223.47
  4. Step 4: Simplify right side
    1,202,479.85x = 1,138,752,899,103.67
  5. Step 5: Solve for x
    x = 1,138,752,899,103.67/1,202,479.85
  6. Step 6: Final answer
    x = 947,003.73

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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.