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Finding the Fourth Proportional to 455,062.64, 628,111.35 and 264,137.54

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Solution

The fourth proportional to 455,062.64, 628,111.35 and 264,137.54 is: 364,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,062.64 : 628,111.35 = 264,137.54 : x
  2. Step 2: Convert to fraction form
    455,062.64/628,111.35 = 264,137.54/x
  3. Step 3: Cross multiply
    455,062.64x = 628,111.35 × 264,137.54
  4. Step 4: Simplify right side
    455,062.64x = 165,907,783,694.52
  5. Step 5: Solve for x
    x = 165,907,783,694.52/455,062.64
  6. Step 6: Final answer
    x = 364,582.30

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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.