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Finding the Fourth Proportional to 490,053.48, 676,273.84 and 275,193.68

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Solution

The fourth proportional to 490,053.48, 676,273.84 and 275,193.68 is: 379,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,053.48 : 676,273.84 = 275,193.68 : x
  2. Step 2: Convert to fraction form
    490,053.48/676,273.84 = 275,193.68/x
  3. Step 3: Cross multiply
    490,053.48x = 676,273.84 × 275,193.68
  4. Step 4: Simplify right side
    490,053.48x = 186,106,286,717.33
  5. Step 5: Solve for x
    x = 186,106,286,717.33/490,053.48
  6. Step 6: Final answer
    x = 379,767.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.