Home / 378,664.47-568,406.16-336,812.58

Finding the Fourth Proportional to 378,664.47, 568,406.16 and 336,812.58

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Solution

The fourth proportional to 378,664.47, 568,406.16 and 336,812.58 is: 505,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,664.47 : 568,406.16 = 336,812.58 : x
  2. Step 2: Convert to fraction form
    378,664.47/568,406.16 = 336,812.58/x
  3. Step 3: Cross multiply
    378,664.47x = 568,406.16 × 336,812.58
  4. Step 4: Simplify right side
    378,664.47x = 191,446,345,237.49
  5. Step 5: Solve for x
    x = 191,446,345,237.49/378,664.47
  6. Step 6: Final answer
    x = 505,583.07

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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.