Home / 538,274.78-742,819.90-293,258.32

Finding the Fourth Proportional to 538,274.78, 742,819.90 and 293,258.32

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Solution

The fourth proportional to 538,274.78, 742,819.90 and 293,258.32 is: 404,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,274.78 : 742,819.90 = 293,258.32 : x
  2. Step 2: Convert to fraction form
    538,274.78/742,819.90 = 293,258.32/x
  3. Step 3: Cross multiply
    538,274.78x = 742,819.90 × 293,258.32
  4. Step 4: Simplify right side
    538,274.78x = 217,838,115,936.57
  5. Step 5: Solve for x
    x = 217,838,115,936.57/538,274.78
  6. Step 6: Final answer
    x = 404,696.86

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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.