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Finding the Fourth Proportional to 528,858, 793,287 and 134,874

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Solution

The fourth proportional to 528,858, 793,287 and 134,874 is: 202,311

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,858 : 793,287 = 134,874 : x
  2. Step 2: Convert to fraction form
    528,858/793,287 = 134,874/x
  3. Step 3: Cross multiply
    528,858x = 793,287 × 134,874
  4. Step 4: Simplify right side
    528,858x = 106,993,790,838
  5. Step 5: Solve for x
    x = 106,993,790,838/528,858
  6. Step 6: Final answer
    x = 202,311

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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.