Home / 829,218.88-1,243,824.09-323,831.17

Finding the Fourth Proportional to 829,218.88, 1,243,824.09 and 323,831.17

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Solution

The fourth proportional to 829,218.88, 1,243,824.09 and 323,831.17 is: 485,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,218.88 : 1,243,824.09 = 323,831.17 : x
  2. Step 2: Convert to fraction form
    829,218.88/1,243,824.09 = 323,831.17/x
  3. Step 3: Cross multiply
    829,218.88x = 1,243,824.09 × 323,831.17
  4. Step 4: Simplify right side
    829,218.88x = 402,789,010,338.89
  5. Step 5: Solve for x
    x = 402,789,010,338.89/829,218.88
  6. Step 6: Final answer
    x = 485,745.10

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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.