Home / 420,650.28-629,969.52-242,617.56

Finding the Fourth Proportional to 420,650.28, 629,969.52 and 242,617.56

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Solution

The fourth proportional to 420,650.28, 629,969.52 and 242,617.56 is: 363,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,650.28 : 629,969.52 = 242,617.56 : x
  2. Step 2: Convert to fraction form
    420,650.28/629,969.52 = 242,617.56/x
  3. Step 3: Cross multiply
    420,650.28x = 629,969.52 × 242,617.56
  4. Step 4: Simplify right side
    420,650.28x = 152,841,667,816.77
  5. Step 5: Solve for x
    x = 152,841,667,816.77/420,650.28
  6. Step 6: Final answer
    x = 363,346.17

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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.