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Finding the Fourth Proportional to 548,927.80, 823,910.10 and 338,975.80

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Solution

The fourth proportional to 548,927.80, 823,910.10 and 338,975.80 is: 508,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,927.80 : 823,910.10 = 338,975.80 : x
  2. Step 2: Convert to fraction form
    548,927.80/823,910.10 = 338,975.80/x
  3. Step 3: Cross multiply
    548,927.80x = 823,910.10 × 338,975.80
  4. Step 4: Simplify right side
    548,927.80x = 279,285,585,275.58
  5. Step 5: Solve for x
    x = 279,285,585,275.58/548,927.80
  6. Step 6: Final answer
    x = 508,783.82

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Double scale
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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.