Home / 685,470.53-1,028,383.20-401,401.10

Finding the Fourth Proportional to 685,470.53, 1,028,383.20 and 401,401.10

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Solution

The fourth proportional to 685,470.53, 1,028,383.20 and 401,401.10 is: 602,205.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,470.53 : 1,028,383.20 = 401,401.10 : x
  2. Step 2: Convert to fraction form
    685,470.53/1,028,383.20 = 401,401.10/x
  3. Step 3: Cross multiply
    685,470.53x = 1,028,383.20 × 401,401.10
  4. Step 4: Simplify right side
    685,470.53x = 412,794,142,559.60
  5. Step 5: Solve for x
    x = 412,794,142,559.60/685,470.53
  6. Step 6: Final answer
    x = 602,205.53

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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.