Home / 455,764.12-682,415.99-305,681.24

Finding the Fourth Proportional to 455,764.12, 682,415.99 and 305,681.24

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Solution

The fourth proportional to 455,764.12, 682,415.99 and 305,681.24 is: 457,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,764.12 : 682,415.99 = 305,681.24 : x
  2. Step 2: Convert to fraction form
    455,764.12/682,415.99 = 305,681.24/x
  3. Step 3: Cross multiply
    455,764.12x = 682,415.99 × 305,681.24
  4. Step 4: Simplify right side
    455,764.12x = 208,601,767,342.97
  5. Step 5: Solve for x
    x = 208,601,767,342.97/455,764.12
  6. Step 6: Final answer
    x = 457,696.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.