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Finding the Fourth Proportional to 455,512.89, 628,684.70 and 264,637

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Solution

The fourth proportional to 455,512.89, 628,684.70 and 264,637 is: 365,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,512.89 : 628,684.70 = 264,637 : x
  2. Step 2: Convert to fraction form
    455,512.89/628,684.70 = 264,637/x
  3. Step 3: Cross multiply
    455,512.89x = 628,684.70 × 264,637
  4. Step 4: Simplify right side
    455,512.89x = 166,373,232,953.90
  5. Step 5: Solve for x
    x = 166,373,232,953.90/455,512.89
  6. Step 6: Final answer
    x = 365,243.74

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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.