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Finding the Fourth Proportional to 519,299.56, 716,687.94 and 304,448.68

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Solution

The fourth proportional to 519,299.56, 716,687.94 and 304,448.68 is: 420,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,299.56 : 716,687.94 = 304,448.68 : x
  2. Step 2: Convert to fraction form
    519,299.56/716,687.94 = 304,448.68/x
  3. Step 3: Cross multiply
    519,299.56x = 716,687.94 × 304,448.68
  4. Step 4: Simplify right side
    519,299.56x = 218,194,697,304.92
  5. Step 5: Solve for x
    x = 218,194,697,304.92/519,299.56
  6. Step 6: Final answer
    x = 420,171.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.