Home / 355,573.20-491,087.10-328,669.02

Finding the Fourth Proportional to 355,573.20, 491,087.10 and 328,669.02

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Solution

The fourth proportional to 355,573.20, 491,087.10 and 328,669.02 is: 453,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,573.20 : 491,087.10 = 328,669.02 : x
  2. Step 2: Convert to fraction form
    355,573.20/491,087.10 = 328,669.02/x
  3. Step 3: Cross multiply
    355,573.20x = 491,087.10 × 328,669.02
  4. Step 4: Simplify right side
    355,573.20x = 161,405,115,891.64
  5. Step 5: Solve for x
    x = 161,405,115,891.64/355,573.20
  6. Step 6: Final answer
    x = 453,929.36

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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.