Home / 812,986.56-1,219,040.01-645,583.86

Finding the Fourth Proportional to 812,986.56, 1,219,040.01 and 645,583.86

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Solution

The fourth proportional to 812,986.56, 1,219,040.01 and 645,583.86 is: 968,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,986.56 : 1,219,040.01 = 645,583.86 : x
  2. Step 2: Convert to fraction form
    812,986.56/1,219,040.01 = 645,583.86/x
  3. Step 3: Cross multiply
    812,986.56x = 1,219,040.01 × 645,583.86
  4. Step 4: Simplify right side
    812,986.56x = 786,992,555,150.24
  5. Step 5: Solve for x
    x = 786,992,555,150.24/812,986.56
  6. Step 6: Final answer
    x = 968,026.53

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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.