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Finding the Fourth Proportional to 550,463.27, 759,578.57 and 308,696.09

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Solution

The fourth proportional to 550,463.27, 759,578.57 and 308,696.09 is: 425,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,463.27 : 759,578.57 = 308,696.09 : x
  2. Step 2: Convert to fraction form
    550,463.27/759,578.57 = 308,696.09/x
  3. Step 3: Cross multiply
    550,463.27x = 759,578.57 × 308,696.09
  4. Step 4: Simplify right side
    550,463.27x = 234,478,934,606.79
  5. Step 5: Solve for x
    x = 234,478,934,606.79/550,463.27
  6. Step 6: Final answer
    x = 425,966.54

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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.