Home / 538,353.71-742,961.29-296,636.21

Finding the Fourth Proportional to 538,353.71, 742,961.29 and 296,636.21

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Solution

The fourth proportional to 538,353.71, 742,961.29 and 296,636.21 is: 409,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,353.71 : 742,961.29 = 296,636.21 : x
  2. Step 2: Convert to fraction form
    538,353.71/742,961.29 = 296,636.21/x
  3. Step 3: Cross multiply
    538,353.71x = 742,961.29 × 296,636.21
  4. Step 4: Simplify right side
    538,353.71x = 220,389,222,358.12
  5. Step 5: Solve for x
    x = 220,389,222,358.12/538,353.71
  6. Step 6: Final answer
    x = 409,376.25

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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.