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Finding the Fourth Proportional to 416,900.20, 624,428.70 and 322,666.60

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Solution

The fourth proportional to 416,900.20, 624,428.70 and 322,666.60 is: 483,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,900.20 : 624,428.70 = 322,666.60 : x
  2. Step 2: Convert to fraction form
    416,900.20/624,428.70 = 322,666.60/x
  3. Step 3: Cross multiply
    416,900.20x = 624,428.70 × 322,666.60
  4. Step 4: Simplify right side
    416,900.20x = 201,482,285,571.42
  5. Step 5: Solve for x
    x = 201,482,285,571.42/416,900.20
  6. Step 6: Final answer
    x = 483,286.61

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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.