Home / 1,212,797.80-1,819,196.70-858,503.80

Finding the Fourth Proportional to 1,212,797.80, 1,819,196.70 and 858,503.80

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Solution

The fourth proportional to 1,212,797.80, 1,819,196.70 and 858,503.80 is: 1,287,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,797.80 : 1,819,196.70 = 858,503.80 : x
  2. Step 2: Convert to fraction form
    1,212,797.80/1,819,196.70 = 858,503.80/x
  3. Step 3: Cross multiply
    1,212,797.80x = 1,819,196.70 × 858,503.80
  4. Step 4: Simplify right side
    1,212,797.80x = 1,561,787,279,897.46
  5. Step 5: Solve for x
    x = 1,561,787,279,897.46/1,212,797.80
  6. Step 6: Final answer
    x = 1,287,755.70

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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.