Home / 986,516.40-1,479,774.60-809,223.60

Finding the Fourth Proportional to 986,516.40, 1,479,774.60 and 809,223.60

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Solution

The fourth proportional to 986,516.40, 1,479,774.60 and 809,223.60 is: 1,213,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,516.40 : 1,479,774.60 = 809,223.60 : x
  2. Step 2: Convert to fraction form
    986,516.40/1,479,774.60 = 809,223.60/x
  3. Step 3: Cross multiply
    986,516.40x = 1,479,774.60 × 809,223.60
  4. Step 4: Simplify right side
    986,516.40x = 1,197,468,529,000.56
  5. Step 5: Solve for x
    x = 1,197,468,529,000.56/986,516.40
  6. Step 6: Final answer
    x = 1,213,835.40

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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.