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Finding the Fourth Proportional to 518,579.96, 777,804.32 and 203,258.30

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Solution

The fourth proportional to 518,579.96, 777,804.32 and 203,258.30 is: 304,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,579.96 : 777,804.32 = 203,258.30 : x
  2. Step 2: Convert to fraction form
    518,579.96/777,804.32 = 203,258.30/x
  3. Step 3: Cross multiply
    518,579.96x = 777,804.32 × 203,258.30
  4. Step 4: Simplify right side
    518,579.96x = 158,095,180,434.98
  5. Step 5: Solve for x
    x = 158,095,180,434.98/518,579.96
  6. Step 6: Final answer
    x = 304,861.73

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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.