Home / 789,872.49-1,090,020.72-427,295.46

Finding the Fourth Proportional to 789,872.49, 1,090,020.72 and 427,295.46

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Solution

The fourth proportional to 789,872.49, 1,090,020.72 and 427,295.46 is: 589,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,872.49 : 1,090,020.72 = 427,295.46 : x
  2. Step 2: Convert to fraction form
    789,872.49/1,090,020.72 = 427,295.46/x
  3. Step 3: Cross multiply
    789,872.49x = 1,090,020.72 × 427,295.46
  4. Step 4: Simplify right side
    789,872.49x = 465,760,904,961.93
  5. Step 5: Solve for x
    x = 465,760,904,961.93/789,872.49
  6. Step 6: Final answer
    x = 589,665.94

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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.