Home / 837,769.21-1,256,667.66-405,235.28

Finding the Fourth Proportional to 837,769.21, 1,256,667.66 and 405,235.28

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Solution

The fourth proportional to 837,769.21, 1,256,667.66 and 405,235.28 is: 607,859.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,769.21 : 1,256,667.66 = 405,235.28 : x
  2. Step 2: Convert to fraction form
    837,769.21/1,256,667.66 = 405,235.28/x
  3. Step 3: Cross multiply
    837,769.21x = 1,256,667.66 × 405,235.28
  4. Step 4: Simplify right side
    837,769.21x = 509,246,074,208.71
  5. Step 5: Solve for x
    x = 509,246,074,208.71/837,769.21
  6. Step 6: Final answer
    x = 607,859.62

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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.