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Finding the Fourth Proportional to 555,188.94, 766,843.88 and 401,984.58

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Solution

The fourth proportional to 555,188.94, 766,843.88 and 401,984.58 is: 555,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,188.94 : 766,843.88 = 401,984.58 : x
  2. Step 2: Convert to fraction form
    555,188.94/766,843.88 = 401,984.58/x
  3. Step 3: Cross multiply
    555,188.94x = 766,843.88 × 401,984.58
  4. Step 4: Simplify right side
    555,188.94x = 308,259,416,032.33
  5. Step 5: Solve for x
    x = 308,259,416,032.33/555,188.94
  6. Step 6: Final answer
    x = 555,233.35

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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.