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Finding the Fourth Proportional to 571,579.29, 788,706.92 and 313,388.29

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Solution

The fourth proportional to 571,579.29, 788,706.92 and 313,388.29 is: 432,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,579.29 : 788,706.92 = 313,388.29 : x
  2. Step 2: Convert to fraction form
    571,579.29/788,706.92 = 313,388.29/x
  3. Step 3: Cross multiply
    571,579.29x = 788,706.92 × 313,388.29
  4. Step 4: Simplify right side
    571,579.29x = 247,171,512,969.97
  5. Step 5: Solve for x
    x = 247,171,512,969.97/571,579.29
  6. Step 6: Final answer
    x = 432,436.09

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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.