Home / 1,338,128.20-2,007,192.30-439,708.60

Finding the Fourth Proportional to 1,338,128.20, 2,007,192.30 and 439,708.60

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Solution

The fourth proportional to 1,338,128.20, 2,007,192.30 and 439,708.60 is: 659,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,128.20 : 2,007,192.30 = 439,708.60 : x
  2. Step 2: Convert to fraction form
    1,338,128.20/2,007,192.30 = 439,708.60/x
  3. Step 3: Cross multiply
    1,338,128.20x = 2,007,192.30 × 439,708.60
  4. Step 4: Simplify right side
    1,338,128.20x = 882,579,716,163.78
  5. Step 5: Solve for x
    x = 882,579,716,163.78/1,338,128.20
  6. Step 6: Final answer
    x = 659,562.90

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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.