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Finding the Fourth Proportional to 620,919.84, 931,476.42 and 200,238.24

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Solution

The fourth proportional to 620,919.84, 931,476.42 and 200,238.24 is: 300,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,919.84 : 931,476.42 = 200,238.24 : x
  2. Step 2: Convert to fraction form
    620,919.84/931,476.42 = 200,238.24/x
  3. Step 3: Cross multiply
    620,919.84x = 931,476.42 × 200,238.24
  4. Step 4: Simplify right side
    620,919.84x = 186,517,198,942.30
  5. Step 5: Solve for x
    x = 186,517,198,942.30/620,919.84
  6. Step 6: Final answer
    x = 300,388.53

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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.