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Finding the Fourth Proportional to 458,540.07, 631,744.39 and 354,817.62

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Solution

The fourth proportional to 458,540.07, 631,744.39 and 354,817.62 is: 488,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,540.07 : 631,744.39 = 354,817.62 : x
  2. Step 2: Convert to fraction form
    458,540.07/631,744.39 = 354,817.62/x
  3. Step 3: Cross multiply
    458,540.07x = 631,744.39 × 354,817.62
  4. Step 4: Simplify right side
    458,540.07x = 224,154,040,908.15
  5. Step 5: Solve for x
    x = 224,154,040,908.15/458,540.07
  6. Step 6: Final answer
    x = 488,842.86

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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.