Home / 685,502.92-1,028,297.96-212,148.52

Finding the Fourth Proportional to 685,502.92, 1,028,297.96 and 212,148.52

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Solution

The fourth proportional to 685,502.92, 1,028,297.96 and 212,148.52 is: 318,236.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,502.92 : 1,028,297.96 = 212,148.52 : x
  2. Step 2: Convert to fraction form
    685,502.92/1,028,297.96 = 212,148.52/x
  3. Step 3: Cross multiply
    685,502.92x = 1,028,297.96 × 212,148.52
  4. Step 4: Simplify right side
    685,502.92x = 218,151,890,333.02
  5. Step 5: Solve for x
    x = 218,151,890,333.02/685,502.92
  6. Step 6: Final answer
    x = 318,236.27

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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.