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Finding the Fourth Proportional to 500,067, 690,087.18 and 270,619.32

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Solution

The fourth proportional to 500,067, 690,087.18 and 270,619.32 is: 373,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,067 : 690,087.18 = 270,619.32 : x
  2. Step 2: Convert to fraction form
    500,067/690,087.18 = 270,619.32/x
  3. Step 3: Cross multiply
    500,067x = 690,087.18 × 270,619.32
  4. Step 4: Simplify right side
    500,067x = 186,750,923,392.32
  5. Step 5: Solve for x
    x = 186,750,923,392.32/500,067
  6. Step 6: Final answer
    x = 373,451.80

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1.5x scale

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.