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Finding the Fourth Proportional to 490,551.08, 676,975.85 and 296,994.29

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Solution

The fourth proportional to 490,551.08, 676,975.85 and 296,994.29 is: 409,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,551.08 : 676,975.85 = 296,994.29 : x
  2. Step 2: Convert to fraction form
    490,551.08/676,975.85 = 296,994.29/x
  3. Step 3: Cross multiply
    490,551.08x = 676,975.85 × 296,994.29
  4. Step 4: Simplify right side
    490,551.08x = 201,057,957,048.05
  5. Step 5: Solve for x
    x = 201,057,957,048.05/490,551.08
  6. Step 6: Final answer
    x = 409,861.41

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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.