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Finding the Fourth Proportional to 550,996.74, 760,427.54 and 321,535.48

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Solution

The fourth proportional to 550,996.74, 760,427.54 and 321,535.48 is: 443,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,996.74 : 760,427.54 = 321,535.48 : x
  2. Step 2: Convert to fraction form
    550,996.74/760,427.54 = 321,535.48/x
  3. Step 3: Cross multiply
    550,996.74x = 760,427.54 × 321,535.48
  4. Step 4: Simplify right side
    550,996.74x = 244,504,434,079.12
  5. Step 5: Solve for x
    x = 244,504,434,079.12/550,996.74
  6. Step 6: Final answer
    x = 443,749.33

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1.5x scale

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.