Home / 482,571.28-723,986.52-212,722.48

Finding the Fourth Proportional to 482,571.28, 723,986.52 and 212,722.48

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Solution

The fourth proportional to 482,571.28, 723,986.52 and 212,722.48 is: 319,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,571.28 : 723,986.52 = 212,722.48 : x
  2. Step 2: Convert to fraction form
    482,571.28/723,986.52 = 212,722.48/x
  3. Step 3: Cross multiply
    482,571.28x = 723,986.52 × 212,722.48
  4. Step 4: Simplify right side
    482,571.28x = 154,008,208,020.97
  5. Step 5: Solve for x
    x = 154,008,208,020.97/482,571.28
  6. Step 6: Final answer
    x = 319,140.85

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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.