Home / 379,004.36-522,966.42-217,828.28

Finding the Fourth Proportional to 379,004.36, 522,966.42 and 217,828.28

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Solution

The fourth proportional to 379,004.36, 522,966.42 and 217,828.28 is: 300,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,004.36 : 522,966.42 = 217,828.28 : x
  2. Step 2: Convert to fraction form
    379,004.36/522,966.42 = 217,828.28/x
  3. Step 3: Cross multiply
    379,004.36x = 522,966.42 × 217,828.28
  4. Step 4: Simplify right side
    379,004.36x = 113,916,873,151.53
  5. Step 5: Solve for x
    x = 113,916,873,151.53/379,004.36
  6. Step 6: Final answer
    x = 300,568.77

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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.