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Finding the Fourth Proportional to 450,672.85, 621,885.36 and 269,348.68

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Solution

The fourth proportional to 450,672.85, 621,885.36 and 269,348.68 is: 371,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,672.85 : 621,885.36 = 269,348.68 : x
  2. Step 2: Convert to fraction form
    450,672.85/621,885.36 = 269,348.68/x
  3. Step 3: Cross multiply
    450,672.85x = 621,885.36 × 269,348.68
  4. Step 4: Simplify right side
    450,672.85x = 167,504,000,827.33
  5. Step 5: Solve for x
    x = 167,504,000,827.33/450,672.85
  6. Step 6: Final answer
    x = 371,675.38

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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.