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Finding the Fourth Proportional to 499,575.36, 689,419.44 and 273,216

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Solution

The fourth proportional to 499,575.36, 689,419.44 and 273,216 is: 377,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,575.36 : 689,419.44 = 273,216 : x
  2. Step 2: Convert to fraction form
    499,575.36/689,419.44 = 273,216/x
  3. Step 3: Cross multiply
    499,575.36x = 689,419.44 × 273,216
  4. Step 4: Simplify right side
    499,575.36x = 188,360,421,719.04
  5. Step 5: Solve for x
    x = 188,360,421,719.04/499,575.36
  6. Step 6: Final answer
    x = 377,041.06

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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.