Home / 1,447,396.32-2,171,031.66-487,788.60

Finding the Fourth Proportional to 1,447,396.32, 2,171,031.66 and 487,788.60

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Solution

The fourth proportional to 1,447,396.32, 2,171,031.66 and 487,788.60 is: 731,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,396.32 : 2,171,031.66 = 487,788.60 : x
  2. Step 2: Convert to fraction form
    1,447,396.32/2,171,031.66 = 487,788.60/x
  3. Step 3: Cross multiply
    1,447,396.32x = 2,171,031.66 × 487,788.60
  4. Step 4: Simplify right side
    1,447,396.32x = 1,059,004,493,987.08
  5. Step 5: Solve for x
    x = 1,059,004,493,987.08/1,447,396.32
  6. Step 6: Final answer
    x = 731,661.73

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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.