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Finding the Fourth Proportional to 672,615.45, 928,181.03 and 366,685.29

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Solution

The fourth proportional to 672,615.45, 928,181.03 and 366,685.29 is: 506,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,615.45 : 928,181.03 = 366,685.29 : x
  2. Step 2: Convert to fraction form
    672,615.45/928,181.03 = 366,685.29/x
  3. Step 3: Cross multiply
    672,615.45x = 928,181.03 × 366,685.29
  4. Step 4: Simplify right side
    672,615.45x = 340,350,328,324.62
  5. Step 5: Solve for x
    x = 340,350,328,324.62/672,615.45
  6. Step 6: Final answer
    x = 506,010.27

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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.