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Finding the Fourth Proportional to 499,651.76, 689,530.36 and 273,297.26

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Solution

The fourth proportional to 499,651.76, 689,530.36 and 273,297.26 is: 377,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,651.76 : 689,530.36 = 273,297.26 : x
  2. Step 2: Convert to fraction form
    499,651.76/689,530.36 = 273,297.26/x
  3. Step 3: Cross multiply
    499,651.76x = 689,530.36 × 273,297.26
  4. Step 4: Simplify right side
    499,651.76x = 188,446,758,074.81
  5. Step 5: Solve for x
    x = 188,446,758,074.81/499,651.76
  6. Step 6: Final answer
    x = 377,156.20

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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.