Home / 490,900.22-677,446.35-276,038.41

Finding the Fourth Proportional to 490,900.22, 677,446.35 and 276,038.41

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Solution

The fourth proportional to 490,900.22, 677,446.35 and 276,038.41 is: 380,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,900.22 : 677,446.35 = 276,038.41 : x
  2. Step 2: Convert to fraction form
    490,900.22/677,446.35 = 276,038.41/x
  3. Step 3: Cross multiply
    490,900.22x = 677,446.35 × 276,038.41
  4. Step 4: Simplify right side
    490,900.22x = 187,001,213,314.30
  5. Step 5: Solve for x
    x = 187,001,213,314.30/490,900.22
  6. Step 6: Final answer
    x = 380,935.28

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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.