Home / 493,261.03-680,668.07-278,371.88

Finding the Fourth Proportional to 493,261.03, 680,668.07 and 278,371.88

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Solution

The fourth proportional to 493,261.03, 680,668.07 and 278,371.88 is: 384,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,261.03 : 680,668.07 = 278,371.88 : x
  2. Step 2: Convert to fraction form
    493,261.03/680,668.07 = 278,371.88/x
  3. Step 3: Cross multiply
    493,261.03x = 680,668.07 × 278,371.88
  4. Step 4: Simplify right side
    493,261.03x = 189,478,850,301.87
  5. Step 5: Solve for x
    x = 189,478,850,301.87/493,261.03
  6. Step 6: Final answer
    x = 384,135.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.