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Finding the Fourth Proportional to 458,540.58, 631,745.08 and 354,818.12

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Solution

The fourth proportional to 458,540.58, 631,745.08 and 354,818.12 is: 488,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,540.58 : 631,745.08 = 354,818.12 : x
  2. Step 2: Convert to fraction form
    458,540.58/631,745.08 = 354,818.12/x
  3. Step 3: Cross multiply
    458,540.58x = 631,745.08 × 354,818.12
  4. Step 4: Simplify right side
    458,540.58x = 224,154,601,604.85
  5. Step 5: Solve for x
    x = 224,154,601,604.85/458,540.58
  6. Step 6: Final answer
    x = 488,843.54

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1.5x scale

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.