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Finding the Fourth Proportional to 778,745.10, 1,168,640.10 and 273,305.10

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Solution

The fourth proportional to 778,745.10, 1,168,640.10 and 273,305.10 is: 410,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,745.10 : 1,168,640.10 = 273,305.10 : x
  2. Step 2: Convert to fraction form
    778,745.10/1,168,640.10 = 273,305.10/x
  3. Step 3: Cross multiply
    778,745.10x = 1,168,640.10 × 273,305.10
  4. Step 4: Simplify right side
    778,745.10x = 319,395,299,394.51
  5. Step 5: Solve for x
    x = 319,395,299,394.51/778,745.10
  6. Step 6: Final answer
    x = 410,141.01

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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.