Home / 1,086,928.80-1,630,393.20-838,096.80

Finding the Fourth Proportional to 1,086,928.80, 1,630,393.20 and 838,096.80

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Solution

The fourth proportional to 1,086,928.80, 1,630,393.20 and 838,096.80 is: 1,257,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,928.80 : 1,630,393.20 = 838,096.80 : x
  2. Step 2: Convert to fraction form
    1,086,928.80/1,630,393.20 = 838,096.80/x
  3. Step 3: Cross multiply
    1,086,928.80x = 1,630,393.20 × 838,096.80
  4. Step 4: Simplify right side
    1,086,928.80x = 1,366,427,323,661.76
  5. Step 5: Solve for x
    x = 1,366,427,323,661.76/1,086,928.80
  6. Step 6: Final answer
    x = 1,257,145.20

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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.