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Finding the Fourth Proportional to 490,626.60, 685,302.60 and 490,626.60

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Solution

The fourth proportional to 490,626.60, 685,302.60 and 490,626.60 is: 685,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,626.60 : 685,302.60 = 490,626.60 : x
  2. Step 2: Convert to fraction form
    490,626.60/685,302.60 = 490,626.60/x
  3. Step 3: Cross multiply
    490,626.60x = 685,302.60 × 490,626.60
  4. Step 4: Simplify right side
    490,626.60x = 336,227,684,609.16
  5. Step 5: Solve for x
    x = 336,227,684,609.16/490,626.60
  6. Step 6: Final answer
    x = 685,302.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.