Home / 890,758.60-1,336,137.90-780,166.60

Finding the Fourth Proportional to 890,758.60, 1,336,137.90 and 780,166.60

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Solution

The fourth proportional to 890,758.60, 1,336,137.90 and 780,166.60 is: 1,170,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,758.60 : 1,336,137.90 = 780,166.60 : x
  2. Step 2: Convert to fraction form
    890,758.60/1,336,137.90 = 780,166.60/x
  3. Step 3: Cross multiply
    890,758.60x = 1,336,137.90 × 780,166.60
  4. Step 4: Simplify right side
    890,758.60x = 1,042,410,162,574.14
  5. Step 5: Solve for x
    x = 1,042,410,162,574.14/890,758.60
  6. Step 6: Final answer
    x = 1,170,249.90

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Similar ratio
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1.5x scale

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.