Home / 1,100,193.78-1,518,393.39-616,889.46

Finding the Fourth Proportional to 1,100,193.78, 1,518,393.39 and 616,889.46

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Solution

The fourth proportional to 1,100,193.78, 1,518,393.39 and 616,889.46 is: 851,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,193.78 : 1,518,393.39 = 616,889.46 : x
  2. Step 2: Convert to fraction form
    1,100,193.78/1,518,393.39 = 616,889.46/x
  3. Step 3: Cross multiply
    1,100,193.78x = 1,518,393.39 × 616,889.46
  4. Step 4: Simplify right side
    1,100,193.78x = 936,680,878,424.67
  5. Step 5: Solve for x
    x = 936,680,878,424.67/1,100,193.78
  6. Step 6: Final answer
    x = 851,378.09

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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.