Home / 493,383.64-680,887.08-278,561.92

Finding the Fourth Proportional to 493,383.64, 680,887.08 and 278,561.92

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Solution

The fourth proportional to 493,383.64, 680,887.08 and 278,561.92 is: 384,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,383.64 : 680,887.08 = 278,561.92 : x
  2. Step 2: Convert to fraction form
    493,383.64/680,887.08 = 278,561.92/x
  3. Step 3: Cross multiply
    493,383.64x = 680,887.08 × 278,561.92
  4. Step 4: Simplify right side
    493,383.64x = 189,669,212,307.99
  5. Step 5: Solve for x
    x = 189,669,212,307.99/493,383.64
  6. Step 6: Final answer
    x = 384,425.42

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1.5x scale

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.