Home / 1,095,486.20-1,640,003.70-816,241.40

Finding the Fourth Proportional to 1,095,486.20, 1,640,003.70 and 816,241.40

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Solution

The fourth proportional to 1,095,486.20, 1,640,003.70 and 816,241.40 is: 1,221,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,486.20 : 1,640,003.70 = 816,241.40 : x
  2. Step 2: Convert to fraction form
    1,095,486.20/1,640,003.70 = 816,241.40/x
  3. Step 3: Cross multiply
    1,095,486.20x = 1,640,003.70 × 816,241.40
  4. Step 4: Simplify right side
    1,095,486.20x = 1,338,638,916,093.18
  5. Step 5: Solve for x
    x = 1,338,638,916,093.18/1,095,486.20
  6. Step 6: Final answer
    x = 1,221,958.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.