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Finding the Fourth Proportional to 507,377.82, 699,698.39 and 303,396.33

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Solution

The fourth proportional to 507,377.82, 699,698.39 and 303,396.33 is: 418,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,377.82 : 699,698.39 = 303,396.33 : x
  2. Step 2: Convert to fraction form
    507,377.82/699,698.39 = 303,396.33/x
  3. Step 3: Cross multiply
    507,377.82x = 699,698.39 × 303,396.33
  4. Step 4: Simplify right side
    507,377.82x = 212,285,922,115.93
  5. Step 5: Solve for x
    x = 212,285,922,115.93/507,377.82
  6. Step 6: Final answer
    x = 418,398.11

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Double scale
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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.