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Finding the Fourth Proportional to 478,801.25, 660,738.49 and 263,936.67

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Solution

The fourth proportional to 478,801.25, 660,738.49 and 263,936.67 is: 364,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,801.25 : 660,738.49 = 263,936.67 : x
  2. Step 2: Convert to fraction form
    478,801.25/660,738.49 = 263,936.67/x
  3. Step 3: Cross multiply
    478,801.25x = 660,738.49 × 263,936.67
  4. Step 4: Simplify right side
    478,801.25x = 174,393,116,791.43
  5. Step 5: Solve for x
    x = 174,393,116,791.43/478,801.25
  6. Step 6: Final answer
    x = 364,228.62

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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.