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Finding the Fourth Proportional to 458,608.05, 632,433.69 and 356,453.28

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Solution

The fourth proportional to 458,608.05, 632,433.69 and 356,453.28 is: 491,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,608.05 : 632,433.69 = 356,453.28 : x
  2. Step 2: Convert to fraction form
    458,608.05/632,433.69 = 356,453.28/x
  3. Step 3: Cross multiply
    458,608.05x = 632,433.69 × 356,453.28
  4. Step 4: Simplify right side
    458,608.05x = 225,433,063,183.00
  5. Step 5: Solve for x
    x = 225,433,063,183.00/458,608.05
  6. Step 6: Final answer
    x = 491,559.32

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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.