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Finding the Fourth Proportional to 550,035.86, 759,084.54 and 308,318.54

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Solution

The fourth proportional to 550,035.86, 759,084.54 and 308,318.54 is: 425,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,035.86 : 759,084.54 = 308,318.54 : x
  2. Step 2: Convert to fraction form
    550,035.86/759,084.54 = 308,318.54/x
  3. Step 3: Cross multiply
    550,035.86x = 759,084.54 × 308,318.54
  4. Step 4: Simplify right side
    550,035.86x = 234,039,837,109.37
  5. Step 5: Solve for x
    x = 234,039,837,109.37/550,035.86
  6. Step 6: Final answer
    x = 425,499.23

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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.