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Finding the Fourth Proportional to 555,440.14, 766,507.42 and 300,791.33

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Solution

The fourth proportional to 555,440.14, 766,507.42 and 300,791.33 is: 415,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,440.14 : 766,507.42 = 300,791.33 : x
  2. Step 2: Convert to fraction form
    555,440.14/766,507.42 = 300,791.33/x
  3. Step 3: Cross multiply
    555,440.14x = 766,507.42 × 300,791.33
  4. Step 4: Simplify right side
    555,440.14x = 230,558,786,316.67
  5. Step 5: Solve for x
    x = 230,558,786,316.67/555,440.14
  6. Step 6: Final answer
    x = 415,092.05

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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.