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Finding the Fourth Proportional to 380,957.97, 571,506.92 and 310,505.59

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Solution

The fourth proportional to 380,957.97, 571,506.92 and 310,505.59 is: 465,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,957.97 : 571,506.92 = 310,505.59 : x
  2. Step 2: Convert to fraction form
    380,957.97/571,506.92 = 310,505.59/x
  3. Step 3: Cross multiply
    380,957.97x = 571,506.92 × 310,505.59
  4. Step 4: Simplify right side
    380,957.97x = 177,456,093,383.68
  5. Step 5: Solve for x
    x = 177,456,093,383.68/380,957.97
  6. Step 6: Final answer
    x = 465,815.41

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1.5x scale

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.