Home / 1,187,578.25-1,638,961.67-651,137.93

Finding the Fourth Proportional to 1,187,578.25, 1,638,961.67 and 651,137.93

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Solution

The fourth proportional to 1,187,578.25, 1,638,961.67 and 651,137.93 is: 898,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,578.25 : 1,638,961.67 = 651,137.93 : x
  2. Step 2: Convert to fraction form
    1,187,578.25/1,638,961.67 = 651,137.93/x
  3. Step 3: Cross multiply
    1,187,578.25x = 1,638,961.67 × 651,137.93
  4. Step 4: Simplify right side
    1,187,578.25x = 1,067,190,109,153.14
  5. Step 5: Solve for x
    x = 1,067,190,109,153.14/1,187,578.25
  6. Step 6: Final answer
    x = 898,627.19

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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.