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Finding the Fourth Proportional to 550,577.92, 759,832.44 and 308,876.15

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Solution

The fourth proportional to 550,577.92, 759,832.44 and 308,876.15 is: 426,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,577.92 : 759,832.44 = 308,876.15 : x
  2. Step 2: Convert to fraction form
    550,577.92/759,832.44 = 308,876.15/x
  3. Step 3: Cross multiply
    550,577.92x = 759,832.44 × 308,876.15
  4. Step 4: Simplify right side
    550,577.92x = 234,694,118,712.31
  5. Step 5: Solve for x
    x = 234,694,118,712.31/550,577.92
  6. Step 6: Final answer
    x = 426,268.67

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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.