Home / 1,189,077.57-1,782,857.79-783,802.17

Finding the Fourth Proportional to 1,189,077.57, 1,782,857.79 and 783,802.17

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Solution

The fourth proportional to 1,189,077.57, 1,782,857.79 and 783,802.17 is: 1,175,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,077.57 : 1,782,857.79 = 783,802.17 : x
  2. Step 2: Convert to fraction form
    1,189,077.57/1,782,857.79 = 783,802.17/x
  3. Step 3: Cross multiply
    1,189,077.57x = 1,782,857.79 × 783,802.17
  4. Step 4: Simplify right side
    1,189,077.57x = 1,397,407,804,603.40
  5. Step 5: Solve for x
    x = 1,397,407,804,603.40/1,189,077.57
  6. Step 6: Final answer
    x = 1,175,203.23

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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.