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Finding the Fourth Proportional to 486,890.73, 671,896.62 and 272,032.29

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Solution

The fourth proportional to 486,890.73, 671,896.62 and 272,032.29 is: 375,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,890.73 : 671,896.62 = 272,032.29 : x
  2. Step 2: Convert to fraction form
    486,890.73/671,896.62 = 272,032.29/x
  3. Step 3: Cross multiply
    486,890.73x = 671,896.62 × 272,032.29
  4. Step 4: Simplify right side
    486,890.73x = 182,777,576,181.86
  5. Step 5: Solve for x
    x = 182,777,576,181.86/486,890.73
  6. Step 6: Final answer
    x = 375,397.53

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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.