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Finding the Fourth Proportional to 451,039.95, 675,840.26 and 330,538.48

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Solution

The fourth proportional to 451,039.95, 675,840.26 and 330,538.48 is: 495,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,039.95 : 675,840.26 = 330,538.48 : x
  2. Step 2: Convert to fraction form
    451,039.95/675,840.26 = 330,538.48/x
  3. Step 3: Cross multiply
    451,039.95x = 675,840.26 × 330,538.48
  4. Step 4: Simplify right side
    451,039.95x = 223,391,209,540.67
  5. Step 5: Solve for x
    x = 223,391,209,540.67/451,039.95
  6. Step 6: Final answer
    x = 495,280.32

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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.