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Finding the Fourth Proportional to 490,758.74, 677,248.10 and 275,900.56

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Solution

The fourth proportional to 490,758.74, 677,248.10 and 275,900.56 is: 380,743.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,758.74 : 677,248.10 = 275,900.56 : x
  2. Step 2: Convert to fraction form
    490,758.74/677,248.10 = 275,900.56/x
  3. Step 3: Cross multiply
    490,758.74x = 677,248.10 × 275,900.56
  4. Step 4: Simplify right side
    490,758.74x = 186,853,130,048.94
  5. Step 5: Solve for x
    x = 186,853,130,048.94/490,758.74
  6. Step 6: Final answer
    x = 380,743.36

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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.