Home / 1,228,712.80-1,843,069.20-697,271.80

Finding the Fourth Proportional to 1,228,712.80, 1,843,069.20 and 697,271.80

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Solution

The fourth proportional to 1,228,712.80, 1,843,069.20 and 697,271.80 is: 1,045,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,712.80 : 1,843,069.20 = 697,271.80 : x
  2. Step 2: Convert to fraction form
    1,228,712.80/1,843,069.20 = 697,271.80/x
  3. Step 3: Cross multiply
    1,228,712.80x = 1,843,069.20 × 697,271.80
  4. Step 4: Simplify right side
    1,228,712.80x = 1,285,120,178,608.56
  5. Step 5: Solve for x
    x = 1,285,120,178,608.56/1,228,712.80
  6. Step 6: Final answer
    x = 1,045,907.70

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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.