Home / 1,173,161.78-1,618,963.22-636,617.78

Finding the Fourth Proportional to 1,173,161.78, 1,618,963.22 and 636,617.78

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Solution

The fourth proportional to 1,173,161.78, 1,618,963.22 and 636,617.78 is: 878,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,161.78 : 1,618,963.22 = 636,617.78 : x
  2. Step 2: Convert to fraction form
    1,173,161.78/1,618,963.22 = 636,617.78/x
  3. Step 3: Cross multiply
    1,173,161.78x = 1,618,963.22 × 636,617.78
  4. Step 4: Simplify right side
    1,173,161.78x = 1,030,660,771,018.05
  5. Step 5: Solve for x
    x = 1,030,660,771,018.05/1,173,161.78
  6. Step 6: Final answer
    x = 878,532.52

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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.