Home / 418,023.44-576,479.40-322,378.64

Finding the Fourth Proportional to 418,023.44, 576,479.40 and 322,378.64

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Solution

The fourth proportional to 418,023.44, 576,479.40 and 322,378.64 is: 444,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,023.44 : 576,479.40 = 322,378.64 : x
  2. Step 2: Convert to fraction form
    418,023.44/576,479.40 = 322,378.64/x
  3. Step 3: Cross multiply
    418,023.44x = 576,479.40 × 322,378.64
  4. Step 4: Simplify right side
    418,023.44x = 185,844,644,960.02
  5. Step 5: Solve for x
    x = 185,844,644,960.02/418,023.44
  6. Step 6: Final answer
    x = 444,579.48

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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.