Home / 447,145.30-617,614.28-324,440.78

Finding the Fourth Proportional to 447,145.30, 617,614.28 and 324,440.78

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Solution

The fourth proportional to 447,145.30, 617,614.28 and 324,440.78 is: 448,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,145.30 : 617,614.28 = 324,440.78 : x
  2. Step 2: Convert to fraction form
    447,145.30/617,614.28 = 324,440.78/x
  3. Step 3: Cross multiply
    447,145.30x = 617,614.28 × 324,440.78
  4. Step 4: Simplify right side
    447,145.30x = 200,379,258,742.34
  5. Step 5: Solve for x
    x = 200,379,258,742.34/447,145.30
  6. Step 6: Final answer
    x = 448,130.08

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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.