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Finding the Fourth Proportional to 455,431.39, 628,550.73 and 264,444.79

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Solution

The fourth proportional to 455,431.39, 628,550.73 and 264,444.79 is: 364,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,431.39 : 628,550.73 = 264,444.79 : x
  2. Step 2: Convert to fraction form
    455,431.39/628,550.73 = 264,444.79/x
  3. Step 3: Cross multiply
    455,431.39x = 628,550.73 × 264,444.79
  4. Step 4: Simplify right side
    455,431.39x = 166,216,962,656.44
  5. Step 5: Solve for x
    x = 166,216,962,656.44/455,431.39
  6. Step 6: Final answer
    x = 364,965.98

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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.