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Finding the Fourth Proportional to 490,048.65, 676,249.56 and 275,197.77

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Solution

The fourth proportional to 490,048.65, 676,249.56 and 275,197.77 is: 379,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,048.65 : 676,249.56 = 275,197.77 : x
  2. Step 2: Convert to fraction form
    490,048.65/676,249.56 = 275,197.77/x
  3. Step 3: Cross multiply
    490,048.65x = 676,249.56 × 275,197.77
  4. Step 4: Simplify right side
    490,048.65x = 186,102,370,875.48
  5. Step 5: Solve for x
    x = 186,102,370,875.48/490,048.65
  6. Step 6: Final answer
    x = 379,763.05

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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.