Home / 685,051.20-1,027,641.60-186,415.20

Finding the Fourth Proportional to 685,051.20, 1,027,641.60 and 186,415.20

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Solution

The fourth proportional to 685,051.20, 1,027,641.60 and 186,415.20 is: 279,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,051.20 : 1,027,641.60 = 186,415.20 : x
  2. Step 2: Convert to fraction form
    685,051.20/1,027,641.60 = 186,415.20/x
  3. Step 3: Cross multiply
    685,051.20x = 1,027,641.60 × 186,415.20
  4. Step 4: Simplify right side
    685,051.20x = 191,568,014,392.32
  5. Step 5: Solve for x
    x = 191,568,014,392.32/685,051.20
  6. Step 6: Final answer
    x = 279,640.43

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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.