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Finding the Fourth Proportional to 499,409.40, 749,114.10 and 275,460.60

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Solution

The fourth proportional to 499,409.40, 749,114.10 and 275,460.60 is: 413,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,409.40 : 749,114.10 = 275,460.60 : x
  2. Step 2: Convert to fraction form
    499,409.40/749,114.10 = 275,460.60/x
  3. Step 3: Cross multiply
    499,409.40x = 749,114.10 × 275,460.60
  4. Step 4: Simplify right side
    499,409.40x = 206,351,419,454.46
  5. Step 5: Solve for x
    x = 206,351,419,454.46/499,409.40
  6. Step 6: Final answer
    x = 413,190.90

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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.