Home / 455,081.28-682,752.96-139,584.48

Finding the Fourth Proportional to 455,081.28, 682,752.96 and 139,584.48

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Solution

The fourth proportional to 455,081.28, 682,752.96 and 139,584.48 is: 209,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,081.28 : 682,752.96 = 139,584.48 : x
  2. Step 2: Convert to fraction form
    455,081.28/682,752.96 = 139,584.48/x
  3. Step 3: Cross multiply
    455,081.28x = 682,752.96 × 139,584.48
  4. Step 4: Simplify right side
    455,081.28x = 95,301,716,890.06
  5. Step 5: Solve for x
    x = 95,301,716,890.06/455,081.28
  6. Step 6: Final answer
    x = 209,416.91

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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.