Home / 419,977.40-629,966.10-367,489.40

Finding the Fourth Proportional to 419,977.40, 629,966.10 and 367,489.40

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Solution

The fourth proportional to 419,977.40, 629,966.10 and 367,489.40 is: 551,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,977.40 : 629,966.10 = 367,489.40 : x
  2. Step 2: Convert to fraction form
    419,977.40/629,966.10 = 367,489.40/x
  3. Step 3: Cross multiply
    419,977.40x = 629,966.10 × 367,489.40
  4. Step 4: Simplify right side
    419,977.40x = 231,505,864,109.34
  5. Step 5: Solve for x
    x = 231,505,864,109.34/419,977.40
  6. Step 6: Final answer
    x = 551,234.10

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Similar ratio
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1.5x scale

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.