Home / 486,022.37-728,949.54-219,721.01

Finding the Fourth Proportional to 486,022.37, 728,949.54 and 219,721.01

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Solution

The fourth proportional to 486,022.37, 728,949.54 and 219,721.01 is: 329,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,022.37 : 728,949.54 = 219,721.01 : x
  2. Step 2: Convert to fraction form
    486,022.37/728,949.54 = 219,721.01/x
  3. Step 3: Cross multiply
    486,022.37x = 728,949.54 × 219,721.01
  4. Step 4: Simplify right side
    486,022.37x = 160,165,529,167.84
  5. Step 5: Solve for x
    x = 160,165,529,167.84/486,022.37
  6. Step 6: Final answer
    x = 329,543.53

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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.