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Finding the Fourth Proportional to 455,518.26, 628,469.01 and 254,275.38

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Solution

The fourth proportional to 455,518.26, 628,469.01 and 254,275.38 is: 350,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,518.26 : 628,469.01 = 254,275.38 : x
  2. Step 2: Convert to fraction form
    455,518.26/628,469.01 = 254,275.38/x
  3. Step 3: Cross multiply
    455,518.26x = 628,469.01 × 254,275.38
  4. Step 4: Simplify right side
    455,518.26x = 159,804,196,335.97
  5. Step 5: Solve for x
    x = 159,804,196,335.97/455,518.26
  6. Step 6: Final answer
    x = 350,818.42

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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.