Home / 1,222,180.84-1,686,584.19-678,285.01

Finding the Fourth Proportional to 1,222,180.84, 1,686,584.19 and 678,285.01

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Solution

The fourth proportional to 1,222,180.84, 1,686,584.19 and 678,285.01 is: 936,019.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,180.84 : 1,686,584.19 = 678,285.01 : x
  2. Step 2: Convert to fraction form
    1,222,180.84/1,686,584.19 = 678,285.01/x
  3. Step 3: Cross multiply
    1,222,180.84x = 1,686,584.19 × 678,285.01
  4. Step 4: Simplify right side
    1,222,180.84x = 1,143,984,774,179.99
  5. Step 5: Solve for x
    x = 1,143,984,774,179.99/1,222,180.84
  6. Step 6: Final answer
    x = 936,019.23

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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.