Home / 1,372,255.72-1,893,091.86-828,217.60

Finding the Fourth Proportional to 1,372,255.72, 1,893,091.86 and 828,217.60

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Solution

The fourth proportional to 1,372,255.72, 1,893,091.86 and 828,217.60 is: 1,142,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,255.72 : 1,893,091.86 = 828,217.60 : x
  2. Step 2: Convert to fraction form
    1,372,255.72/1,893,091.86 = 828,217.60/x
  3. Step 3: Cross multiply
    1,372,255.72x = 1,893,091.86 × 828,217.60
  4. Step 4: Simplify right side
    1,372,255.72x = 1,567,891,996,868.74
  5. Step 5: Solve for x
    x = 1,567,891,996,868.74/1,372,255.72
  6. Step 6: Final answer
    x = 1,142,565.47

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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.