Home / 547,664.28-819,981.54-280,849.56

Finding the Fourth Proportional to 547,664.28, 819,981.54 and 280,849.56

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Solution

The fourth proportional to 547,664.28, 819,981.54 and 280,849.56 is: 420,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,664.28 : 819,981.54 = 280,849.56 : x
  2. Step 2: Convert to fraction form
    547,664.28/819,981.54 = 280,849.56/x
  3. Step 3: Cross multiply
    547,664.28x = 819,981.54 × 280,849.56
  4. Step 4: Simplify right side
    547,664.28x = 230,291,454,717.12
  5. Step 5: Solve for x
    x = 230,291,454,717.12/547,664.28
  6. Step 6: Final answer
    x = 420,497.49

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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.