Home / 1,339,129.80-2,008,711.04-392,519.66

Finding the Fourth Proportional to 1,339,129.80, 2,008,711.04 and 392,519.66

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Solution

The fourth proportional to 1,339,129.80, 2,008,711.04 and 392,519.66 is: 588,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,129.80 : 2,008,711.04 = 392,519.66 : x
  2. Step 2: Convert to fraction form
    1,339,129.80/2,008,711.04 = 392,519.66/x
  3. Step 3: Cross multiply
    1,339,129.80x = 2,008,711.04 × 392,519.66
  4. Step 4: Simplify right side
    1,339,129.80x = 788,458,562,452.89
  5. Step 5: Solve for x
    x = 788,458,562,452.89/1,339,129.80
  6. Step 6: Final answer
    x = 588,784.27

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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.