Home / 1,246,902.82-1,871,054.91-678,323.70

Finding the Fourth Proportional to 1,246,902.82, 1,871,054.91 and 678,323.70

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Solution

The fourth proportional to 1,246,902.82, 1,871,054.91 and 678,323.70 is: 1,017,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,902.82 : 1,871,054.91 = 678,323.70 : x
  2. Step 2: Convert to fraction form
    1,246,902.82/1,871,054.91 = 678,323.70/x
  3. Step 3: Cross multiply
    1,246,902.82x = 1,871,054.91 × 678,323.70
  4. Step 4: Simplify right side
    1,246,902.82x = 1,269,180,889,454.37
  5. Step 5: Solve for x
    x = 1,269,180,889,454.37/1,246,902.82
  6. Step 6: Final answer
    x = 1,017,866.73

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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.