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Finding the Fourth Proportional to 455,540.10, 683,310.15 and 329,568.90

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Solution

The fourth proportional to 455,540.10, 683,310.15 and 329,568.90 is: 494,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,540.10 : 683,310.15 = 329,568.90 : x
  2. Step 2: Convert to fraction form
    455,540.10/683,310.15 = 329,568.90/x
  3. Step 3: Cross multiply
    455,540.10x = 683,310.15 × 329,568.90
  4. Step 4: Simplify right side
    455,540.10x = 225,197,774,494.34
  5. Step 5: Solve for x
    x = 225,197,774,494.34/455,540.10
  6. Step 6: Final answer
    x = 494,353.35

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Similar ratio
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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.