Home / 1,214,621.44-1,820,712.82-415,356.12

Finding the Fourth Proportional to 1,214,621.44, 1,820,712.82 and 415,356.12

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Solution

The fourth proportional to 1,214,621.44, 1,820,712.82 and 415,356.12 is: 622,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,621.44 : 1,820,712.82 = 415,356.12 : x
  2. Step 2: Convert to fraction form
    1,214,621.44/1,820,712.82 = 415,356.12/x
  3. Step 3: Cross multiply
    1,214,621.44x = 1,820,712.82 × 415,356.12
  4. Step 4: Simplify right side
    1,214,621.44x = 756,244,212,549.46
  5. Step 5: Solve for x
    x = 756,244,212,549.46/1,214,621.44
  6. Step 6: Final answer
    x = 622,617.21

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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.