Home / 685,100.50-1,027,369.64-205,159.16

Finding the Fourth Proportional to 685,100.50, 1,027,369.64 and 205,159.16

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Solution

The fourth proportional to 685,100.50, 1,027,369.64 and 205,159.16 is: 307,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,100.50 : 1,027,369.64 = 205,159.16 : x
  2. Step 2: Convert to fraction form
    685,100.50/1,027,369.64 = 205,159.16/x
  3. Step 3: Cross multiply
    685,100.50x = 1,027,369.64 × 205,159.16
  4. Step 4: Simplify right side
    685,100.50x = 210,774,295,433.22
  5. Step 5: Solve for x
    x = 210,774,295,433.22/685,100.50
  6. Step 6: Final answer
    x = 307,654.56

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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.