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Finding the Fourth Proportional to 555,062.93, 765,986.82 and 300,414.12

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Solution

The fourth proportional to 555,062.93, 765,986.82 and 300,414.12 is: 414,571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,062.93 : 765,986.82 = 300,414.12 : x
  2. Step 2: Convert to fraction form
    555,062.93/765,986.82 = 300,414.12/x
  3. Step 3: Cross multiply
    555,062.93x = 765,986.82 × 300,414.12
  4. Step 4: Simplify right side
    555,062.93x = 230,113,256,461.90
  5. Step 5: Solve for x
    x = 230,113,256,461.90/555,062.93
  6. Step 6: Final answer
    x = 414,571.48

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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.