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Finding the Fourth Proportional to 455,669.64, 628,770.06 and 264,652.20

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Solution

The fourth proportional to 455,669.64, 628,770.06 and 264,652.20 is: 365,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,669.64 : 628,770.06 = 264,652.20 : x
  2. Step 2: Convert to fraction form
    455,669.64/628,770.06 = 264,652.20/x
  3. Step 3: Cross multiply
    455,669.64x = 628,770.06 × 264,652.20
  4. Step 4: Simplify right side
    455,669.64x = 166,405,379,673.13
  5. Step 5: Solve for x
    x = 166,405,379,673.13/455,669.64
  6. Step 6: Final answer
    x = 365,188.65

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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.