Home / 538,128.39-742,588.68-296,365.11

Finding the Fourth Proportional to 538,128.39, 742,588.68 and 296,365.11

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Solution

The fourth proportional to 538,128.39, 742,588.68 and 296,365.11 is: 408,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,128.39 : 742,588.68 = 296,365.11 : x
  2. Step 2: Convert to fraction form
    538,128.39/742,588.68 = 296,365.11/x
  3. Step 3: Cross multiply
    538,128.39x = 742,588.68 × 296,365.11
  4. Step 4: Simplify right side
    538,128.39x = 220,077,375,832.96
  5. Step 5: Solve for x
    x = 220,077,375,832.96/538,128.39
  6. Step 6: Final answer
    x = 408,968.16

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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.