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Finding the Fourth Proportional to 485,429.49, 728,027.43 and 148,473.06

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Solution

The fourth proportional to 485,429.49, 728,027.43 and 148,473.06 is: 222,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,429.49 : 728,027.43 = 148,473.06 : x
  2. Step 2: Convert to fraction form
    485,429.49/728,027.43 = 148,473.06/x
  3. Step 3: Cross multiply
    485,429.49x = 728,027.43 × 148,473.06
  4. Step 4: Simplify right side
    485,429.49x = 108,092,460,296.04
  5. Step 5: Solve for x
    x = 108,092,460,296.04/485,429.49
  6. Step 6: Final answer
    x = 222,673.86

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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.