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Finding the Fourth Proportional to 550,560.45, 825,840.68 and 340,608.45

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Solution

The fourth proportional to 550,560.45, 825,840.68 and 340,608.45 is: 510,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,560.45 : 825,840.68 = 340,608.45 : x
  2. Step 2: Convert to fraction form
    550,560.45/825,840.68 = 340,608.45/x
  3. Step 3: Cross multiply
    550,560.45x = 825,840.68 × 340,608.45
  4. Step 4: Simplify right side
    550,560.45x = 281,288,312,258.70
  5. Step 5: Solve for x
    x = 281,288,312,258.70/550,560.45
  6. Step 6: Final answer
    x = 510,912.68

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Double scale
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Similar ratio
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1.5x scale

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.