Home / 398,515.30-598,464.15-281,011.30

Finding the Fourth Proportional to 398,515.30, 598,464.15 and 281,011.30

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Solution

The fourth proportional to 398,515.30, 598,464.15 and 281,011.30 is: 422,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,515.30 : 598,464.15 = 281,011.30 : x
  2. Step 2: Convert to fraction form
    398,515.30/598,464.15 = 281,011.30/x
  3. Step 3: Cross multiply
    398,515.30x = 598,464.15 × 281,011.30
  4. Step 4: Simplify right side
    398,515.30x = 168,175,188,794.90
  5. Step 5: Solve for x
    x = 168,175,188,794.90/398,515.30
  6. Step 6: Final answer
    x = 422,004.35

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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.