Home / 1,215,091.03-1,820,639.49-415,936.63

Finding the Fourth Proportional to 1,215,091.03, 1,820,639.49 and 415,936.63

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Solution

The fourth proportional to 1,215,091.03, 1,820,639.49 and 415,936.63 is: 623,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,091.03 : 1,820,639.49 = 415,936.63 : x
  2. Step 2: Convert to fraction form
    1,215,091.03/1,820,639.49 = 415,936.63/x
  3. Step 3: Cross multiply
    1,215,091.03x = 1,820,639.49 × 415,936.63
  4. Step 4: Simplify right side
    1,215,091.03x = 757,270,644,390.46
  5. Step 5: Solve for x
    x = 757,270,644,390.46/1,215,091.03
  6. Step 6: Final answer
    x = 623,221.33

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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.