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Finding the Fourth Proportional to 455,449.08, 628,524.75 and 251,499.72

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Solution

The fourth proportional to 455,449.08, 628,524.75 and 251,499.72 is: 347,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,449.08 : 628,524.75 = 251,499.72 : x
  2. Step 2: Convert to fraction form
    455,449.08/628,524.75 = 251,499.72/x
  3. Step 3: Cross multiply
    455,449.08x = 628,524.75 × 251,499.72
  4. Step 4: Simplify right side
    455,449.08x = 158,073,798,638.07
  5. Step 5: Solve for x
    x = 158,073,798,638.07/455,449.08
  6. Step 6: Final answer
    x = 347,072.39

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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.