Home / 378,864.09-568,389.69-112,623.48

Finding the Fourth Proportional to 378,864.09, 568,389.69 and 112,623.48

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Solution

The fourth proportional to 378,864.09, 568,389.69 and 112,623.48 is: 168,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,864.09 : 568,389.69 = 112,623.48 : x
  2. Step 2: Convert to fraction form
    378,864.09/568,389.69 = 112,623.48/x
  3. Step 3: Cross multiply
    378,864.09x = 568,389.69 × 112,623.48
  4. Step 4: Simplify right side
    378,864.09x = 64,014,024,883.92
  5. Step 5: Solve for x
    x = 64,014,024,883.92/378,864.09
  6. Step 6: Final answer
    x = 168,963.03

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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.