Home / 1,222,276.62-1,686,604.93-678,435.33

Finding the Fourth Proportional to 1,222,276.62, 1,686,604.93 and 678,435.33

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Solution

The fourth proportional to 1,222,276.62, 1,686,604.93 and 678,435.33 is: 936,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,276.62 : 1,686,604.93 = 678,435.33 : x
  2. Step 2: Convert to fraction form
    1,222,276.62/1,686,604.93 = 678,435.33/x
  3. Step 3: Cross multiply
    1,222,276.62x = 1,686,604.93 × 678,435.33
  4. Step 4: Simplify right side
    1,222,276.62x = 1,144,252,372,264.18
  5. Step 5: Solve for x
    x = 1,144,252,372,264.18/1,222,276.62
  6. Step 6: Final answer
    x = 936,164.82

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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.