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Finding the Fourth Proportional to 451,349.64, 622,849.14 and 247,396.20

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Solution

The fourth proportional to 451,349.64, 622,849.14 and 247,396.20 is: 341,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,349.64 : 622,849.14 = 247,396.20 : x
  2. Step 2: Convert to fraction form
    451,349.64/622,849.14 = 247,396.20/x
  3. Step 3: Cross multiply
    451,349.64x = 622,849.14 × 247,396.20
  4. Step 4: Simplify right side
    451,349.64x = 154,090,510,409.27
  5. Step 5: Solve for x
    x = 154,090,510,409.27/451,349.64
  6. Step 6: Final answer
    x = 341,399.43

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1.5x scale

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.