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Finding the Fourth Proportional to 420,637.57, 629,950.49 and 242,604.84

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Solution

The fourth proportional to 420,637.57, 629,950.49 and 242,604.84 is: 363,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,637.57 : 629,950.49 = 242,604.84 : x
  2. Step 2: Convert to fraction form
    420,637.57/629,950.49 = 242,604.84/x
  3. Step 3: Cross multiply
    420,637.57x = 629,950.49 × 242,604.84
  4. Step 4: Simplify right side
    420,637.57x = 152,829,033,471.60
  5. Step 5: Solve for x
    x = 152,829,033,471.60/420,637.57
  6. Step 6: Final answer
    x = 363,327.11

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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.