Home / 1,522,090.78-2,100,519.20-868,703.68

Finding the Fourth Proportional to 1,522,090.78, 2,100,519.20 and 868,703.68

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Solution

The fourth proportional to 1,522,090.78, 2,100,519.20 and 868,703.68 is: 1,198,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522,090.78 : 2,100,519.20 = 868,703.68 : x
  2. Step 2: Convert to fraction form
    1,522,090.78/2,100,519.20 = 868,703.68/x
  3. Step 3: Cross multiply
    1,522,090.78x = 2,100,519.20 × 868,703.68
  4. Step 4: Simplify right side
    1,522,090.78x = 1,824,728,769,825.94
  5. Step 5: Solve for x
    x = 1,824,728,769,825.94/1,522,090.78
  6. Step 6: Final answer
    x = 1,198,830.45

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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.