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Finding the Fourth Proportional to 1,226,570.82, 1,839,726.81 and 328,103.25

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Solution

The fourth proportional to 1,226,570.82, 1,839,726.81 and 328,103.25 is: 492,120.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,570.82 : 1,839,726.81 = 328,103.25 : x
  2. Step 2: Convert to fraction form
    1,226,570.82/1,839,726.81 = 328,103.25/x
  3. Step 3: Cross multiply
    1,226,570.82x = 1,839,726.81 × 328,103.25
  4. Step 4: Simplify right side
    1,226,570.82x = 603,620,345,473.13
  5. Step 5: Solve for x
    x = 603,620,345,473.13/1,226,570.82
  6. Step 6: Final answer
    x = 492,120.26

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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.