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Finding the Fourth Proportional to 449,671.20, 620,675.52 and 296,820.96

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Solution

The fourth proportional to 449,671.20, 620,675.52 and 296,820.96 is: 409,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,671.20 : 620,675.52 = 296,820.96 : x
  2. Step 2: Convert to fraction form
    449,671.20/620,675.52 = 296,820.96/x
  3. Step 3: Cross multiply
    449,671.20x = 620,675.52 × 296,820.96
  4. Step 4: Simplify right side
    449,671.20x = 184,229,503,694.90
  5. Step 5: Solve for x
    x = 184,229,503,694.90/449,671.20
  6. Step 6: Final answer
    x = 409,698.25

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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.