Home / 1,252,836.42-1,728,915.39-679,876.60

Finding the Fourth Proportional to 1,252,836.42, 1,728,915.39 and 679,876.60

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Solution

The fourth proportional to 1,252,836.42, 1,728,915.39 and 679,876.60 is: 938,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,836.42 : 1,728,915.39 = 679,876.60 : x
  2. Step 2: Convert to fraction form
    1,252,836.42/1,728,915.39 = 679,876.60/x
  3. Step 3: Cross multiply
    1,252,836.42x = 1,728,915.39 × 679,876.60
  4. Step 4: Simplify right side
    1,252,836.42x = 1,175,449,112,718.59
  5. Step 5: Solve for x
    x = 1,175,449,112,718.59/1,252,836.42
  6. Step 6: Final answer
    x = 938,230.32

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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.