Home / 1,647,029.78-2,272,877.52-911,913.62

Finding the Fourth Proportional to 1,647,029.78, 2,272,877.52 and 911,913.62

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Solution

The fourth proportional to 1,647,029.78, 2,272,877.52 and 911,913.62 is: 1,258,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,029.78 : 2,272,877.52 = 911,913.62 : x
  2. Step 2: Convert to fraction form
    1,647,029.78/2,272,877.52 = 911,913.62/x
  3. Step 3: Cross multiply
    1,647,029.78x = 2,272,877.52 × 911,913.62
  4. Step 4: Simplify right side
    1,647,029.78x = 2,072,667,955,715.43
  5. Step 5: Solve for x
    x = 2,072,667,955,715.43/1,647,029.78
  6. Step 6: Final answer
    x = 1,258,427.74

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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.