Home / 490,758.30-677,242.38-275,899.32

Finding the Fourth Proportional to 490,758.30, 677,242.38 and 275,899.32

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Solution

The fourth proportional to 490,758.30, 677,242.38 and 275,899.32 is: 380,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,758.30 : 677,242.38 = 275,899.32 : x
  2. Step 2: Convert to fraction form
    490,758.30/677,242.38 = 275,899.32/x
  3. Step 3: Cross multiply
    490,758.30x = 677,242.38 × 275,899.32
  4. Step 4: Simplify right side
    490,758.30x = 186,850,712,117.18
  5. Step 5: Solve for x
    x = 186,850,712,117.18/490,758.30
  6. Step 6: Final answer
    x = 380,738.77

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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.