Home / 1,336,396.60-2,005,053.90-389,906.20

Finding the Fourth Proportional to 1,336,396.60, 2,005,053.90 and 389,906.20

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Solution

The fourth proportional to 1,336,396.60, 2,005,053.90 and 389,906.20 is: 584,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,396.60 : 2,005,053.90 = 389,906.20 : x
  2. Step 2: Convert to fraction form
    1,336,396.60/2,005,053.90 = 389,906.20/x
  3. Step 3: Cross multiply
    1,336,396.60x = 2,005,053.90 × 389,906.20
  4. Step 4: Simplify right side
    1,336,396.60x = 781,782,946,944.18
  5. Step 5: Solve for x
    x = 781,782,946,944.18/1,336,396.60
  6. Step 6: Final answer
    x = 584,993.22

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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.