Home / 1,278,431.89-1,764,273.48-697,692.36

Finding the Fourth Proportional to 1,278,431.89, 1,764,273.48 and 697,692.36

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Solution

The fourth proportional to 1,278,431.89, 1,764,273.48 and 697,692.36 is: 962,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,431.89 : 1,764,273.48 = 697,692.36 : x
  2. Step 2: Convert to fraction form
    1,278,431.89/1,764,273.48 = 697,692.36/x
  3. Step 3: Cross multiply
    1,278,431.89x = 1,764,273.48 × 697,692.36
  4. Step 4: Simplify right side
    1,278,431.89x = 1,230,920,126,696.77
  5. Step 5: Solve for x
    x = 1,230,920,126,696.77/1,278,431.89
  6. Step 6: Final answer
    x = 962,835.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.