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Finding the Fourth Proportional to 518,004.41, 777,112.10 and 218,486.11

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Solution

The fourth proportional to 518,004.41, 777,112.10 and 218,486.11 is: 327,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,004.41 : 777,112.10 = 218,486.11 : x
  2. Step 2: Convert to fraction form
    518,004.41/777,112.10 = 218,486.11/x
  3. Step 3: Cross multiply
    518,004.41x = 777,112.10 × 218,486.11
  4. Step 4: Simplify right side
    518,004.41x = 169,788,194,784.94
  5. Step 5: Solve for x
    x = 169,788,194,784.94/518,004.41
  6. Step 6: Final answer
    x = 327,773.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.