Home / 455,042.79-682,272.59-188,986.95

Finding the Fourth Proportional to 455,042.79, 682,272.59 and 188,986.95

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Solution

The fourth proportional to 455,042.79, 682,272.59 and 188,986.95 is: 283,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,042.79 : 682,272.59 = 188,986.95 : x
  2. Step 2: Convert to fraction form
    455,042.79/682,272.59 = 188,986.95/x
  3. Step 3: Cross multiply
    455,042.79x = 682,272.59 × 188,986.95
  4. Step 4: Simplify right side
    455,042.79x = 128,940,614,907.77
  5. Step 5: Solve for x
    x = 128,940,614,907.77/455,042.79
  6. Step 6: Final answer
    x = 283,359.32

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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.