Home / 486,110.06-670,731.74-279,338.51

Finding the Fourth Proportional to 486,110.06, 670,731.74 and 279,338.51

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Solution

The fourth proportional to 486,110.06, 670,731.74 and 279,338.51 is: 385,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,110.06 : 670,731.74 = 279,338.51 : x
  2. Step 2: Convert to fraction form
    486,110.06/670,731.74 = 279,338.51/x
  3. Step 3: Cross multiply
    486,110.06x = 670,731.74 × 279,338.51
  4. Step 4: Simplify right side
    486,110.06x = 187,361,202,626.20
  5. Step 5: Solve for x
    x = 187,361,202,626.20/486,110.06
  6. Step 6: Final answer
    x = 385,429.59

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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.