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Finding the Fourth Proportional to 451,502.88, 622,609.02 and 315,487.26

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Solution

The fourth proportional to 451,502.88, 622,609.02 and 315,487.26 is: 435,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,502.88 : 622,609.02 = 315,487.26 : x
  2. Step 2: Convert to fraction form
    451,502.88/622,609.02 = 315,487.26/x
  3. Step 3: Cross multiply
    451,502.88x = 622,609.02 × 315,487.26
  4. Step 4: Simplify right side
    451,502.88x = 196,425,213,771.09
  5. Step 5: Solve for x
    x = 196,425,213,771.09/451,502.88
  6. Step 6: Final answer
    x = 435,047.53

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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.