Home / 685,712.28-1,028,636.08-236,373.96

Finding the Fourth Proportional to 685,712.28, 1,028,636.08 and 236,373.96

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Solution

The fourth proportional to 685,712.28, 1,028,636.08 and 236,373.96 is: 354,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,712.28 : 1,028,636.08 = 236,373.96 : x
  2. Step 2: Convert to fraction form
    685,712.28/1,028,636.08 = 236,373.96/x
  3. Step 3: Cross multiply
    685,712.28x = 1,028,636.08 × 236,373.96
  4. Step 4: Simplify right side
    685,712.28x = 243,142,783,628.48
  5. Step 5: Solve for x
    x = 243,142,783,628.48/685,712.28
  6. Step 6: Final answer
    x = 354,584.26

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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.