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Finding the Fourth Proportional to 624,349.80, 936,429.66 and 203,625

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Solution

The fourth proportional to 624,349.80, 936,429.66 and 203,625 is: 305,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,349.80 : 936,429.66 = 203,625 : x
  2. Step 2: Convert to fraction form
    624,349.80/936,429.66 = 203,625/x
  3. Step 3: Cross multiply
    624,349.80x = 936,429.66 × 203,625
  4. Step 4: Simplify right side
    624,349.80x = 190,680,489,517.50
  5. Step 5: Solve for x
    x = 190,680,489,517.50/624,349.80
  6. Step 6: Final answer
    x = 305,406.50

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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.