Home / 1,291,467.58-1,782,225.03-718,507.60

Finding the Fourth Proportional to 1,291,467.58, 1,782,225.03 and 718,507.60

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Solution

The fourth proportional to 1,291,467.58, 1,782,225.03 and 718,507.60 is: 991,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,467.58 : 1,782,225.03 = 718,507.60 : x
  2. Step 2: Convert to fraction form
    1,291,467.58/1,782,225.03 = 718,507.60/x
  3. Step 3: Cross multiply
    1,291,467.58x = 1,782,225.03 × 718,507.60
  4. Step 4: Simplify right side
    1,291,467.58x = 1,280,542,228,965.23
  5. Step 5: Solve for x
    x = 1,280,542,228,965.23/1,291,467.58
  6. Step 6: Final answer
    x = 991,540.36

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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.