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Finding the Fourth Proportional to 478,815.99, 660,768.06 and 263,951.34

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Solution

The fourth proportional to 478,815.99, 660,768.06 and 263,951.34 is: 364,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,815.99 : 660,768.06 = 263,951.34 : x
  2. Step 2: Convert to fraction form
    478,815.99/660,768.06 = 263,951.34/x
  3. Step 3: Cross multiply
    478,815.99x = 660,768.06 × 263,951.34
  4. Step 4: Simplify right side
    478,815.99x = 174,410,614,866.20
  5. Step 5: Solve for x
    x = 174,410,614,866.20/478,815.99
  6. Step 6: Final answer
    x = 364,253.95

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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.