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Finding the Fourth Proportional to 490,492.58, 676,896.89 and 275,628.33

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Solution

The fourth proportional to 490,492.58, 676,896.89 and 275,628.33 is: 380,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,492.58 : 676,896.89 = 275,628.33 : x
  2. Step 2: Convert to fraction form
    490,492.58/676,896.89 = 275,628.33/x
  3. Step 3: Cross multiply
    490,492.58x = 676,896.89 × 275,628.33
  4. Step 4: Simplify right side
    490,492.58x = 186,571,957,994.75
  5. Step 5: Solve for x
    x = 186,571,957,994.75/490,492.58
  6. Step 6: Final answer
    x = 380,376.72

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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.