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Finding the Fourth Proportional to 499,491.36, 689,284.08 and 273,132

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Solution

The fourth proportional to 499,491.36, 689,284.08 and 273,132 is: 376,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,491.36 : 689,284.08 = 273,132 : x
  2. Step 2: Convert to fraction form
    499,491.36/689,284.08 = 273,132/x
  3. Step 3: Cross multiply
    499,491.36x = 689,284.08 × 273,132
  4. Step 4: Simplify right side
    499,491.36x = 188,265,539,338.56
  5. Step 5: Solve for x
    x = 188,265,539,338.56/499,491.36
  6. Step 6: Final answer
    x = 376,914.51

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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.