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Finding the Fourth Proportional to 486,745.74, 671,722.74 and 268,968.60

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Solution

The fourth proportional to 486,745.74, 671,722.74 and 268,968.60 is: 371,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,745.74 : 671,722.74 = 268,968.60 : x
  2. Step 2: Convert to fraction form
    486,745.74/671,722.74 = 268,968.60/x
  3. Step 3: Cross multiply
    486,745.74x = 671,722.74 × 268,968.60
  4. Step 4: Simplify right side
    486,745.74x = 180,672,324,965.96
  5. Step 5: Solve for x
    x = 180,672,324,965.96/486,745.74
  6. Step 6: Final answer
    x = 371,184.19

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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.