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Finding the Fourth Proportional to 451,501.88, 622,607.64 and 315,486.26

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Solution

The fourth proportional to 451,501.88, 622,607.64 and 315,486.26 is: 435,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,501.88 : 622,607.64 = 315,486.26 : x
  2. Step 2: Convert to fraction form
    451,501.88/622,607.64 = 315,486.26/x
  3. Step 3: Cross multiply
    451,501.88x = 622,607.64 × 315,486.26
  4. Step 4: Simplify right side
    451,501.88x = 196,424,155,791.03
  5. Step 5: Solve for x
    x = 196,424,155,791.03/451,501.88
  6. Step 6: Final answer
    x = 435,046.15

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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.