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Finding the Fourth Proportional to 637,404.44, 879,419.50 and 361,716.60

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Solution

The fourth proportional to 637,404.44, 879,419.50 and 361,716.60 is: 499,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,404.44 : 879,419.50 = 361,716.60 : x
  2. Step 2: Convert to fraction form
    637,404.44/879,419.50 = 361,716.60/x
  3. Step 3: Cross multiply
    637,404.44x = 879,419.50 × 361,716.60
  4. Step 4: Simplify right side
    637,404.44x = 318,100,631,513.70
  5. Step 5: Solve for x
    x = 318,100,631,513.70/637,404.44
  6. Step 6: Final answer
    x = 499,056.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.