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Finding the Fourth Proportional to 455,431.32, 628,550.64 and 264,444.73

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Solution

The fourth proportional to 455,431.32, 628,550.64 and 264,444.73 is: 364,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,431.32 : 628,550.64 = 264,444.73 : x
  2. Step 2: Convert to fraction form
    455,431.32/628,550.64 = 264,444.73/x
  3. Step 3: Cross multiply
    455,431.32x = 628,550.64 × 264,444.73
  4. Step 4: Simplify right side
    455,431.32x = 166,216,902,714.75
  5. Step 5: Solve for x
    x = 166,216,902,714.75/455,431.32
  6. Step 6: Final answer
    x = 364,965.90

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1.5x scale

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.