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Finding the Fourth Proportional to 451,039.91, 675,840.18 and 330,538.41

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Solution

The fourth proportional to 451,039.91, 675,840.18 and 330,538.41 is: 495,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,039.91 : 675,840.18 = 330,538.41 : x
  2. Step 2: Convert to fraction form
    451,039.91/675,840.18 = 330,538.41/x
  3. Step 3: Cross multiply
    451,039.91x = 675,840.18 × 330,538.41
  4. Step 4: Simplify right side
    451,039.91x = 223,391,138,511.31
  5. Step 5: Solve for x
    x = 223,391,138,511.31/451,039.91
  6. Step 6: Final answer
    x = 495,280.21

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1.5x scale

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.