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Finding the Fourth Proportional to 503,872.60, 695,292.60 and 310,249.60

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Solution

The fourth proportional to 503,872.60, 695,292.60 and 310,249.60 is: 428,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,872.60 : 695,292.60 = 310,249.60 : x
  2. Step 2: Convert to fraction form
    503,872.60/695,292.60 = 310,249.60/x
  3. Step 3: Cross multiply
    503,872.60x = 695,292.60 × 310,249.60
  4. Step 4: Simplify right side
    503,872.60x = 215,714,251,032.96
  5. Step 5: Solve for x
    x = 215,714,251,032.96/503,872.60
  6. Step 6: Final answer
    x = 428,112.68

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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.