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Finding the Fourth Proportional to 507,374.82, 699,694.25 and 303,393.33

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Solution

The fourth proportional to 507,374.82, 699,694.25 and 303,393.33 is: 418,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,374.82 : 699,694.25 = 303,393.33 : x
  2. Step 2: Convert to fraction form
    507,374.82/699,694.25 = 303,393.33/x
  3. Step 3: Cross multiply
    507,374.82x = 699,694.25 × 303,393.33
  4. Step 4: Simplify right side
    507,374.82x = 212,282,568,678.97
  5. Step 5: Solve for x
    x = 212,282,568,678.97/507,374.82
  6. Step 6: Final answer
    x = 418,393.98

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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.