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Finding the Fourth Proportional to 548,735.40, 823,103.10 and 490,674.60

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Solution

The fourth proportional to 548,735.40, 823,103.10 and 490,674.60 is: 736,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,735.40 : 823,103.10 = 490,674.60 : x
  2. Step 2: Convert to fraction form
    548,735.40/823,103.10 = 490,674.60/x
  3. Step 3: Cross multiply
    548,735.40x = 823,103.10 × 490,674.60
  4. Step 4: Simplify right side
    548,735.40x = 403,875,784,351.26
  5. Step 5: Solve for x
    x = 403,875,784,351.26/548,735.40
  6. Step 6: Final answer
    x = 736,011.90

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Similar ratio
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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.