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Finding the Fourth Proportional to 555,188.19, 766,842.85 and 401,983.83

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Solution

The fourth proportional to 555,188.19, 766,842.85 and 401,983.83 is: 555,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,188.19 : 766,842.85 = 401,983.83 : x
  2. Step 2: Convert to fraction form
    555,188.19/766,842.85 = 401,983.83/x
  3. Step 3: Cross multiply
    555,188.19x = 766,842.85 × 401,983.83
  4. Step 4: Simplify right side
    555,188.19x = 308,258,424,092.44
  5. Step 5: Solve for x
    x = 308,258,424,092.44/555,188.19
  6. Step 6: Final answer
    x = 555,232.31

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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.