Home / 685,481.56-1,026,433.86-551,630.68

Finding the Fourth Proportional to 685,481.56, 1,026,433.86 and 551,630.68

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Solution

The fourth proportional to 685,481.56, 1,026,433.86 and 551,630.68 is: 826,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,481.56 : 1,026,433.86 = 551,630.68 : x
  2. Step 2: Convert to fraction form
    685,481.56/1,026,433.86 = 551,630.68/x
  3. Step 3: Cross multiply
    685,481.56x = 1,026,433.86 × 551,630.68
  4. Step 4: Simplify right side
    685,481.56x = 566,212,408,166.83
  5. Step 5: Solve for x
    x = 566,212,408,166.83/685,481.56
  6. Step 6: Final answer
    x = 826,006.77

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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.