Home / 879,519.78-1,319,494.59-280,481.04

Finding the Fourth Proportional to 879,519.78, 1,319,494.59 and 280,481.04

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Solution

The fourth proportional to 879,519.78, 1,319,494.59 and 280,481.04 is: 420,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,519.78 : 1,319,494.59 = 280,481.04 : x
  2. Step 2: Convert to fraction form
    879,519.78/1,319,494.59 = 280,481.04/x
  3. Step 3: Cross multiply
    879,519.78x = 1,319,494.59 × 280,481.04
  4. Step 4: Simplify right side
    879,519.78x = 370,093,214,877.57
  5. Step 5: Solve for x
    x = 370,093,214,877.57/879,519.78
  6. Step 6: Final answer
    x = 420,790.10

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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.