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Finding the Fourth Proportional to 548,564.40, 822,846.60 and 398,098.80

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Solution

The fourth proportional to 548,564.40, 822,846.60 and 398,098.80 is: 597,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,564.40 : 822,846.60 = 398,098.80 : x
  2. Step 2: Convert to fraction form
    548,564.40/822,846.60 = 398,098.80/x
  3. Step 3: Cross multiply
    548,564.40x = 822,846.60 × 398,098.80
  4. Step 4: Simplify right side
    548,564.40x = 327,574,244,044.08
  5. Step 5: Solve for x
    x = 327,574,244,044.08/548,564.40
  6. Step 6: Final answer
    x = 597,148.20

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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.