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Finding the Fourth Proportional to 456,504.72, 630,063 and 305,863.44

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Solution

The fourth proportional to 456,504.72, 630,063 and 305,863.44 is: 422,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,504.72 : 630,063 = 305,863.44 : x
  2. Step 2: Convert to fraction form
    456,504.72/630,063 = 305,863.44/x
  3. Step 3: Cross multiply
    456,504.72x = 630,063 × 305,863.44
  4. Step 4: Simplify right side
    456,504.72x = 192,713,236,596.72
  5. Step 5: Solve for x
    x = 192,713,236,596.72/456,504.72
  6. Step 6: Final answer
    x = 422,149.49

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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.