Home / 467,759.07-645,077.12-306,555.57

Finding the Fourth Proportional to 467,759.07, 645,077.12 and 306,555.57

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Solution

The fourth proportional to 467,759.07, 645,077.12 and 306,555.57 is: 422,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,759.07 : 645,077.12 = 306,555.57 : x
  2. Step 2: Convert to fraction form
    467,759.07/645,077.12 = 306,555.57/x
  3. Step 3: Cross multiply
    467,759.07x = 645,077.12 × 306,555.57
  4. Step 4: Simplify right side
    467,759.07x = 197,751,982,682.78
  5. Step 5: Solve for x
    x = 197,751,982,682.78/467,759.07
  6. Step 6: Final answer
    x = 422,764.61

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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.