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Finding the Fourth Proportional to 469,819.59, 648,351.45 and 254,959.65

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Solution

The fourth proportional to 469,819.59, 648,351.45 and 254,959.65 is: 351,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,819.59 : 648,351.45 = 254,959.65 : x
  2. Step 2: Convert to fraction form
    469,819.59/648,351.45 = 254,959.65/x
  3. Step 3: Cross multiply
    469,819.59x = 648,351.45 × 254,959.65
  4. Step 4: Simplify right side
    469,819.59x = 165,303,458,768.99
  5. Step 5: Solve for x
    x = 165,303,458,768.99/469,819.59
  6. Step 6: Final answer
    x = 351,844.54

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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.