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Finding the Fourth Proportional to 455,552.16, 628,322.22 and 403,929.84

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Solution

The fourth proportional to 455,552.16, 628,322.22 and 403,929.84 is: 557,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,552.16 : 628,322.22 = 403,929.84 : x
  2. Step 2: Convert to fraction form
    455,552.16/628,322.22 = 403,929.84/x
  3. Step 3: Cross multiply
    455,552.16x = 628,322.22 × 403,929.84
  4. Step 4: Simplify right side
    455,552.16x = 253,798,093,793.05
  5. Step 5: Solve for x
    x = 253,798,093,793.05/455,552.16
  6. Step 6: Final answer
    x = 557,121.92

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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.