Home / 479,581.40-661,844.32-275,698.28

Finding the Fourth Proportional to 479,581.40, 661,844.32 and 275,698.28

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Solution

The fourth proportional to 479,581.40, 661,844.32 and 275,698.28 is: 380,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,581.40 : 661,844.32 = 275,698.28 : x
  2. Step 2: Convert to fraction form
    479,581.40/661,844.32 = 275,698.28/x
  3. Step 3: Cross multiply
    479,581.40x = 661,844.32 × 275,698.28
  4. Step 4: Simplify right side
    479,581.40x = 182,469,340,651.77
  5. Step 5: Solve for x
    x = 182,469,340,651.77/479,581.40
  6. Step 6: Final answer
    x = 380,476.27

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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.