Home / 840,515.70-1,259,644.41-786,709.02

Finding the Fourth Proportional to 840,515.70, 1,259,644.41 and 786,709.02

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Solution

The fourth proportional to 840,515.70, 1,259,644.41 and 786,709.02 is: 1,179,006.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,515.70 : 1,259,644.41 = 786,709.02 : x
  2. Step 2: Convert to fraction form
    840,515.70/1,259,644.41 = 786,709.02/x
  3. Step 3: Cross multiply
    840,515.70x = 1,259,644.41 × 786,709.02
  4. Step 4: Simplify right side
    840,515.70x = 990,973,619,339.58
  5. Step 5: Solve for x
    x = 990,973,619,339.58/840,515.70
  6. Step 6: Final answer
    x = 1,179,006.67

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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.