Home / 828,628.92-1,242,835.38-379,219.32

Finding the Fourth Proportional to 828,628.92, 1,242,835.38 and 379,219.32

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Solution

The fourth proportional to 828,628.92, 1,242,835.38 and 379,219.32 is: 568,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,628.92 : 1,242,835.38 = 379,219.32 : x
  2. Step 2: Convert to fraction form
    828,628.92/1,242,835.38 = 379,219.32/x
  3. Step 3: Cross multiply
    828,628.92x = 1,242,835.38 × 379,219.32
  4. Step 4: Simplify right side
    828,628.92x = 471,307,187,675.54
  5. Step 5: Solve for x
    x = 471,307,187,675.54/828,628.92
  6. Step 6: Final answer
    x = 568,779.55

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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.