Home / 1,288,791.60-1,932,458.40-490,099.20

Finding the Fourth Proportional to 1,288,791.60, 1,932,458.40 and 490,099.20

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Solution

The fourth proportional to 1,288,791.60, 1,932,458.40 and 490,099.20 is: 734,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,791.60 : 1,932,458.40 = 490,099.20 : x
  2. Step 2: Convert to fraction form
    1,288,791.60/1,932,458.40 = 490,099.20/x
  3. Step 3: Cross multiply
    1,288,791.60x = 1,932,458.40 × 490,099.20
  4. Step 4: Simplify right side
    1,288,791.60x = 947,096,315,873.28
  5. Step 5: Solve for x
    x = 947,096,315,873.28/1,288,791.60
  6. Step 6: Final answer
    x = 734,871.58

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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.