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Finding the Fourth Proportional to 1,274,692.29, 1,913,922.90 and 850,868.70

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Solution

The fourth proportional to 1,274,692.29, 1,913,922.90 and 850,868.70 is: 1,277,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,692.29 : 1,913,922.90 = 850,868.70 : x
  2. Step 2: Convert to fraction form
    1,274,692.29/1,913,922.90 = 850,868.70/x
  3. Step 3: Cross multiply
    1,274,692.29x = 1,913,922.90 × 850,868.70
  4. Step 4: Simplify right side
    1,274,692.29x = 1,628,497,075,999.27
  5. Step 5: Solve for x
    x = 1,628,497,075,999.27/1,274,692.29
  6. Step 6: Final answer
    x = 1,277,560.94

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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.