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Finding the Fourth Proportional to 406,372.60, 608,522.10 and 323,428.60

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Solution

The fourth proportional to 406,372.60, 608,522.10 and 323,428.60 is: 484,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,372.60 : 608,522.10 = 323,428.60 : x
  2. Step 2: Convert to fraction form
    406,372.60/608,522.10 = 323,428.60/x
  3. Step 3: Cross multiply
    406,372.60x = 608,522.10 × 323,428.60
  4. Step 4: Simplify right side
    406,372.60x = 196,813,450,872.06
  5. Step 5: Solve for x
    x = 196,813,450,872.06/406,372.60
  6. Step 6: Final answer
    x = 484,317.72

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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.