Home / 743,672.64-1,115,642.88-271,021.44

Finding the Fourth Proportional to 743,672.64, 1,115,642.88 and 271,021.44

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Solution

The fourth proportional to 743,672.64, 1,115,642.88 and 271,021.44 is: 406,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,672.64 : 1,115,642.88 = 271,021.44 : x
  2. Step 2: Convert to fraction form
    743,672.64/1,115,642.88 = 271,021.44/x
  3. Step 3: Cross multiply
    743,672.64x = 1,115,642.88 × 271,021.44
  4. Step 4: Simplify right side
    743,672.64x = 302,363,139,863.35
  5. Step 5: Solve for x
    x = 302,363,139,863.35/743,672.64
  6. Step 6: Final answer
    x = 406,580.97

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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.