Home / 816,518.92-1,222,157.94-436,489.60

Finding the Fourth Proportional to 816,518.92, 1,222,157.94 and 436,489.60

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Solution

The fourth proportional to 816,518.92, 1,222,157.94 and 436,489.60 is: 653,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,518.92 : 1,222,157.94 = 436,489.60 : x
  2. Step 2: Convert to fraction form
    816,518.92/1,222,157.94 = 436,489.60/x
  3. Step 3: Cross multiply
    816,518.92x = 1,222,157.94 × 436,489.60
  4. Step 4: Simplify right side
    816,518.92x = 533,459,230,367.42
  5. Step 5: Solve for x
    x = 533,459,230,367.42/816,518.92
  6. Step 6: Final answer
    x = 653,333.58

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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.