Home / 522,719.82-783,986.04-138,471.24

Finding the Fourth Proportional to 522,719.82, 783,986.04 and 138,471.24

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Solution

The fourth proportional to 522,719.82, 783,986.04 and 138,471.24 is: 207,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,719.82 : 783,986.04 = 138,471.24 : x
  2. Step 2: Convert to fraction form
    522,719.82/783,986.04 = 138,471.24/x
  3. Step 3: Cross multiply
    522,719.82x = 783,986.04 × 138,471.24
  4. Step 4: Simplify right side
    522,719.82x = 108,559,519,101.49
  5. Step 5: Solve for x
    x = 108,559,519,101.49/522,719.82
  6. Step 6: Final answer
    x = 207,682.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.