Home / 419,955.10-629,932.65-314,979.10

Finding the Fourth Proportional to 419,955.10, 629,932.65 and 314,979.10

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Solution

The fourth proportional to 419,955.10, 629,932.65 and 314,979.10 is: 472,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,955.10 : 629,932.65 = 314,979.10 : x
  2. Step 2: Convert to fraction form
    419,955.10/629,932.65 = 314,979.10/x
  3. Step 3: Cross multiply
    419,955.10x = 629,932.65 × 314,979.10
  4. Step 4: Simplify right side
    419,955.10x = 198,415,619,157.62
  5. Step 5: Solve for x
    x = 198,415,619,157.62/419,955.10
  6. Step 6: Final answer
    x = 472,468.65

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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.