Home / 685,772.34-1,028,707.79-236,486.75

Finding the Fourth Proportional to 685,772.34, 1,028,707.79 and 236,486.75

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Solution

The fourth proportional to 685,772.34, 1,028,707.79 and 236,486.75 is: 354,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,772.34 : 1,028,707.79 = 236,486.75 : x
  2. Step 2: Convert to fraction form
    685,772.34/1,028,707.79 = 236,486.75/x
  3. Step 3: Cross multiply
    685,772.34x = 1,028,707.79 × 236,486.75
  4. Step 4: Simplify right side
    685,772.34x = 243,275,755,630.81
  5. Step 5: Solve for x
    x = 243,275,755,630.81/685,772.34
  6. Step 6: Final answer
    x = 354,747.11

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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.