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Finding the Fourth Proportional to 654,404.60, 980,877.90 and 254,912.60

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Solution

The fourth proportional to 654,404.60, 980,877.90 and 254,912.60 is: 382,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,404.60 : 980,877.90 = 254,912.60 : x
  2. Step 2: Convert to fraction form
    654,404.60/980,877.90 = 254,912.60/x
  3. Step 3: Cross multiply
    654,404.60x = 980,877.90 × 254,912.60
  4. Step 4: Simplify right side
    654,404.60x = 250,038,135,771.54
  5. Step 5: Solve for x
    x = 250,038,135,771.54/654,404.60
  6. Step 6: Final answer
    x = 382,084.93

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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.