Home / 487,716.39-673,074.77-272,843.64

Finding the Fourth Proportional to 487,716.39, 673,074.77 and 272,843.64

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Solution

The fourth proportional to 487,716.39, 673,074.77 and 272,843.64 is: 376,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,716.39 : 673,074.77 = 272,843.64 : x
  2. Step 2: Convert to fraction form
    487,716.39/673,074.77 = 272,843.64/x
  3. Step 3: Cross multiply
    487,716.39x = 673,074.77 × 272,843.64
  4. Step 4: Simplify right side
    487,716.39x = 183,644,168,874.75
  5. Step 5: Solve for x
    x = 183,644,168,874.75/487,716.39
  6. Step 6: Final answer
    x = 376,538.85

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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.