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Finding the Fourth Proportional to 463,819.98, 640,060.41 and 259,879.50

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Solution

The fourth proportional to 463,819.98, 640,060.41 and 259,879.50 is: 358,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,819.98 : 640,060.41 = 259,879.50 : x
  2. Step 2: Convert to fraction form
    463,819.98/640,060.41 = 259,879.50/x
  3. Step 3: Cross multiply
    463,819.98x = 640,060.41 × 259,879.50
  4. Step 4: Simplify right side
    463,819.98x = 166,338,579,320.60
  5. Step 5: Solve for x
    x = 166,338,579,320.60/463,819.98
  6. Step 6: Final answer
    x = 358,627.46

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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.