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Finding the Fourth Proportional to 885,800.80, 1,328,571.60 and 254,648.80

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Solution

The fourth proportional to 885,800.80, 1,328,571.60 and 254,648.80 is: 381,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,800.80 : 1,328,571.60 = 254,648.80 : x
  2. Step 2: Convert to fraction form
    885,800.80/1,328,571.60 = 254,648.80/x
  3. Step 3: Cross multiply
    885,800.80x = 1,328,571.60 × 254,648.80
  4. Step 4: Simplify right side
    885,800.80x = 338,319,163,654.08
  5. Step 5: Solve for x
    x = 338,319,163,654.08/885,800.80
  6. Step 6: Final answer
    x = 381,935.94

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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.