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Finding the Fourth Proportional to 548,486.40, 822,729.60 and 193,497.60

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Solution

The fourth proportional to 548,486.40, 822,729.60 and 193,497.60 is: 290,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,486.40 : 822,729.60 = 193,497.60 : x
  2. Step 2: Convert to fraction form
    548,486.40/822,729.60 = 193,497.60/x
  3. Step 3: Cross multiply
    548,486.40x = 822,729.60 × 193,497.60
  4. Step 4: Simplify right side
    548,486.40x = 159,196,203,048.96
  5. Step 5: Solve for x
    x = 159,196,203,048.96/548,486.40
  6. Step 6: Final answer
    x = 290,246.40

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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.