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Finding the Fourth Proportional to 1,813,993.82, 2,721,384.32 and 551,788.64

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Solution

The fourth proportional to 1,813,993.82, 2,721,384.32 and 551,788.64 is: 827,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,993.82 : 2,721,384.32 = 551,788.64 : x
  2. Step 2: Convert to fraction form
    1,813,993.82/2,721,384.32 = 551,788.64/x
  3. Step 3: Cross multiply
    1,813,993.82x = 2,721,384.32 × 551,788.64
  4. Step 4: Simplify right side
    1,813,993.82x = 1,501,628,952,850.12
  5. Step 5: Solve for x
    x = 1,501,628,952,850.12/1,813,993.82
  6. Step 6: Final answer
    x = 827,802.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.