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Finding the Fourth Proportional to 629,949.80, 945,019.90 and 203,343.08

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Solution

The fourth proportional to 629,949.80, 945,019.90 and 203,343.08 is: 305,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,949.80 : 945,019.90 = 203,343.08 : x
  2. Step 2: Convert to fraction form
    629,949.80/945,019.90 = 203,343.08/x
  3. Step 3: Cross multiply
    629,949.80x = 945,019.90 × 203,343.08
  4. Step 4: Simplify right side
    629,949.80x = 192,163,257,127.29
  5. Step 5: Solve for x
    x = 192,163,257,127.29/629,949.80
  6. Step 6: Final answer
    x = 305,045.35

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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.