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Finding the Fourth Proportional to 627,839.60, 941,716.20 and 201,369.20

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Solution

The fourth proportional to 627,839.60, 941,716.20 and 201,369.20 is: 302,039.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,839.60 : 941,716.20 = 201,369.20 : x
  2. Step 2: Convert to fraction form
    627,839.60/941,716.20 = 201,369.20/x
  3. Step 3: Cross multiply
    627,839.60x = 941,716.20 × 201,369.20
  4. Step 4: Simplify right side
    627,839.60x = 189,632,637,821.04
  5. Step 5: Solve for x
    x = 189,632,637,821.04/627,839.60
  6. Step 6: Final answer
    x = 302,039.94

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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.