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Finding the Fourth Proportional to 455,520.26, 628,471.77 and 254,277.38

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Solution

The fourth proportional to 455,520.26, 628,471.77 and 254,277.38 is: 350,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,520.26 : 628,471.77 = 254,277.38 : x
  2. Step 2: Convert to fraction form
    455,520.26/628,471.77 = 254,277.38/x
  3. Step 3: Cross multiply
    455,520.26x = 628,471.77 × 254,277.38
  4. Step 4: Simplify right side
    455,520.26x = 159,806,155,079.56
  5. Step 5: Solve for x
    x = 159,806,155,079.56/455,520.26
  6. Step 6: Final answer
    x = 350,821.18

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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.