Home / 1,638,217.74-2,260,678.82-949,918.64

Finding the Fourth Proportional to 1,638,217.74, 2,260,678.82 and 949,918.64

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Solution

The fourth proportional to 1,638,217.74, 2,260,678.82 and 949,918.64 is: 1,310,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,217.74 : 2,260,678.82 = 949,918.64 : x
  2. Step 2: Convert to fraction form
    1,638,217.74/2,260,678.82 = 949,918.64/x
  3. Step 3: Cross multiply
    1,638,217.74x = 2,260,678.82 × 949,918.64
  4. Step 4: Simplify right side
    1,638,217.74x = 2,147,460,958,197.70
  5. Step 5: Solve for x
    x = 2,147,460,958,197.70/1,638,217.74
  6. Step 6: Final answer
    x = 1,310,851.97

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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.