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Finding the Fourth Proportional to 485,673.66, 729,144.03 and 326,462.79

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Solution

The fourth proportional to 485,673.66, 729,144.03 and 326,462.79 is: 490,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,673.66 : 729,144.03 = 326,462.79 : x
  2. Step 2: Convert to fraction form
    485,673.66/729,144.03 = 326,462.79/x
  3. Step 3: Cross multiply
    485,673.66x = 729,144.03 × 326,462.79
  4. Step 4: Simplify right side
    485,673.66x = 238,038,394,345.64
  5. Step 5: Solve for x
    x = 238,038,394,345.64/485,673.66
  6. Step 6: Final answer
    x = 490,120.04

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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.