Home / 493,540.28-681,044.46-289,569.88

Finding the Fourth Proportional to 493,540.28, 681,044.46 and 289,569.88

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Solution

The fourth proportional to 493,540.28, 681,044.46 and 289,569.88 is: 399,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,540.28 : 681,044.46 = 289,569.88 : x
  2. Step 2: Convert to fraction form
    493,540.28/681,044.46 = 289,569.88/x
  3. Step 3: Cross multiply
    493,540.28x = 681,044.46 × 289,569.88
  4. Step 4: Simplify right side
    493,540.28x = 197,209,962,556.87
  5. Step 5: Solve for x
    x = 197,209,962,556.87/493,540.28
  6. Step 6: Final answer
    x = 399,582.30

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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.