Home / 1,295,457.86-1,940,584.38-645,074.64

Finding the Fourth Proportional to 1,295,457.86, 1,940,584.38 and 645,074.64

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Solution

The fourth proportional to 1,295,457.86, 1,940,584.38 and 645,074.64 is: 966,316.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,457.86 : 1,940,584.38 = 645,074.64 : x
  2. Step 2: Convert to fraction form
    1,295,457.86/1,940,584.38 = 645,074.64/x
  3. Step 3: Cross multiply
    1,295,457.86x = 1,940,584.38 × 645,074.64
  4. Step 4: Simplify right side
    1,295,457.86x = 1,251,821,770,318.12
  5. Step 5: Solve for x
    x = 1,251,821,770,318.12/1,295,457.86
  6. Step 6: Final answer
    x = 966,316.09

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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.