Home / 1,298,474.70-1,944,759.60-820,177.80

Finding the Fourth Proportional to 1,298,474.70, 1,944,759.60 and 820,177.80

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Solution

The fourth proportional to 1,298,474.70, 1,944,759.60 and 820,177.80 is: 1,228,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,474.70 : 1,944,759.60 = 820,177.80 : x
  2. Step 2: Convert to fraction form
    1,298,474.70/1,944,759.60 = 820,177.80/x
  3. Step 3: Cross multiply
    1,298,474.70x = 1,944,759.60 × 820,177.80
  4. Step 4: Simplify right side
    1,298,474.70x = 1,595,048,650,256.88
  5. Step 5: Solve for x
    x = 1,595,048,650,256.88/1,298,474.70
  6. Step 6: Final answer
    x = 1,228,401.79

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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.