Home / 1,336,688.69-2,004,999.73-390,067.61

Finding the Fourth Proportional to 1,336,688.69, 2,004,999.73 and 390,067.61

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Solution

The fourth proportional to 1,336,688.69, 2,004,999.73 and 390,067.61 is: 585,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,688.69 : 2,004,999.73 = 390,067.61 : x
  2. Step 2: Convert to fraction form
    1,336,688.69/2,004,999.73 = 390,067.61/x
  3. Step 3: Cross multiply
    1,336,688.69x = 2,004,999.73 × 390,067.61
  4. Step 4: Simplify right side
    1,336,688.69x = 782,085,441,731.58
  5. Step 5: Solve for x
    x = 782,085,441,731.58/1,336,688.69
  6. Step 6: Final answer
    x = 585,091.69

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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.