Home / 1,222,372.41-1,686,694.08-678,512.35

Finding the Fourth Proportional to 1,222,372.41, 1,686,694.08 and 678,512.35

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Solution

The fourth proportional to 1,222,372.41, 1,686,694.08 and 678,512.35 is: 936,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,372.41 : 1,686,694.08 = 678,512.35 : x
  2. Step 2: Convert to fraction form
    1,222,372.41/1,686,694.08 = 678,512.35/x
  3. Step 3: Cross multiply
    1,222,372.41x = 1,686,694.08 × 678,512.35
  4. Step 4: Simplify right side
    1,222,372.41x = 1,144,442,763,951.89
  5. Step 5: Solve for x
    x = 1,144,442,763,951.89/1,222,372.41
  6. Step 6: Final answer
    x = 936,247.21

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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.