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Finding the Fourth Proportional to 551,744.48, 761,383.09 and 322,323.01

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Solution

The fourth proportional to 551,744.48, 761,383.09 and 322,323.01 is: 444,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,744.48 : 761,383.09 = 322,323.01 : x
  2. Step 2: Convert to fraction form
    551,744.48/761,383.09 = 322,323.01/x
  3. Step 3: Cross multiply
    551,744.48x = 761,383.09 × 322,323.01
  4. Step 4: Simplify right side
    551,744.48x = 245,411,289,331.90
  5. Step 5: Solve for x
    x = 245,411,289,331.90/551,744.48
  6. Step 6: Final answer
    x = 444,791.56

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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.