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Finding the Fourth Proportional to 538,301.83, 742,873.37 and 308,901.12

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Solution

The fourth proportional to 538,301.83, 742,873.37 and 308,901.12 is: 426,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,301.83 : 742,873.37 = 308,901.12 : x
  2. Step 2: Convert to fraction form
    538,301.83/742,873.37 = 308,901.12/x
  3. Step 3: Cross multiply
    538,301.83x = 742,873.37 × 308,901.12
  4. Step 4: Simplify right side
    538,301.83x = 229,474,414,466.67
  5. Step 5: Solve for x
    x = 229,474,414,466.67/538,301.83
  6. Step 6: Final answer
    x = 426,293.21

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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.