Home / 398,614.29-597,918.89-145,912.38

Finding the Fourth Proportional to 398,614.29, 597,918.89 and 145,912.38

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Solution

The fourth proportional to 398,614.29, 597,918.89 and 145,912.38 is: 218,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,614.29 : 597,918.89 = 145,912.38 : x
  2. Step 2: Convert to fraction form
    398,614.29/597,918.89 = 145,912.38/x
  3. Step 3: Cross multiply
    398,614.29x = 597,918.89 × 145,912.38
  4. Step 4: Simplify right side
    398,614.29x = 87,243,765,662.04
  5. Step 5: Solve for x
    x = 87,243,765,662.04/398,614.29
  6. Step 6: Final answer
    x = 218,867.63

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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.