Home / 825,846.80-1,239,499.20-488,465.60

Finding the Fourth Proportional to 825,846.80, 1,239,499.20 and 488,465.60

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Solution

The fourth proportional to 825,846.80, 1,239,499.20 and 488,465.60 is: 733,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,846.80 : 1,239,499.20 = 488,465.60 : x
  2. Step 2: Convert to fraction form
    825,846.80/1,239,499.20 = 488,465.60/x
  3. Step 3: Cross multiply
    825,846.80x = 1,239,499.20 × 488,465.60
  4. Step 4: Simplify right side
    825,846.80x = 605,452,720,427.52
  5. Step 5: Solve for x
    x = 605,452,720,427.52/825,846.80
  6. Step 6: Final answer
    x = 733,129.58

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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.