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Finding the Fourth Proportional to 503,690.68, 751,850.82 and 443,905.40

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Solution

The fourth proportional to 503,690.68, 751,850.82 and 443,905.40 is: 662,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,690.68 : 751,850.82 = 443,905.40 : x
  2. Step 2: Convert to fraction form
    503,690.68/751,850.82 = 443,905.40/x
  3. Step 3: Cross multiply
    503,690.68x = 751,850.82 × 443,905.40
  4. Step 4: Simplify right side
    503,690.68x = 333,750,638,992.43
  5. Step 5: Solve for x
    x = 333,750,638,992.43/503,690.68
  6. Step 6: Final answer
    x = 662,610.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.