Home / 838,634.43-1,258,152.74-270,069.11

Finding the Fourth Proportional to 838,634.43, 1,258,152.74 and 270,069.11

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Solution

The fourth proportional to 838,634.43, 1,258,152.74 and 270,069.11 is: 405,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,634.43 : 1,258,152.74 = 270,069.11 : x
  2. Step 2: Convert to fraction form
    838,634.43/1,258,152.74 = 270,069.11/x
  3. Step 3: Cross multiply
    838,634.43x = 1,258,152.74 × 270,069.11
  4. Step 4: Simplify right side
    838,634.43x = 339,788,190,735.86
  5. Step 5: Solve for x
    x = 339,788,190,735.86/838,634.43
  6. Step 6: Final answer
    x = 405,168.42

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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.