Home / 690,539.42-952,992.29-418,618.78

Finding the Fourth Proportional to 690,539.42, 952,992.29 and 418,618.78

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Solution

The fourth proportional to 690,539.42, 952,992.29 and 418,618.78 is: 577,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,539.42 : 952,992.29 = 418,618.78 : x
  2. Step 2: Convert to fraction form
    690,539.42/952,992.29 = 418,618.78/x
  3. Step 3: Cross multiply
    690,539.42x = 952,992.29 × 418,618.78
  4. Step 4: Simplify right side
    690,539.42x = 398,940,468,453.27
  5. Step 5: Solve for x
    x = 398,940,468,453.27/690,539.42
  6. Step 6: Final answer
    x = 577,722.94

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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.