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Finding the Fourth Proportional to 499,919.48, 689,888.94 and 273,565

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Solution

The fourth proportional to 499,919.48, 689,888.94 and 273,565 is: 377,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,919.48 : 689,888.94 = 273,565 : x
  2. Step 2: Convert to fraction form
    499,919.48/689,888.94 = 273,565/x
  3. Step 3: Cross multiply
    499,919.48x = 689,888.94 × 273,565
  4. Step 4: Simplify right side
    499,919.48x = 188,729,467,871.10
  5. Step 5: Solve for x
    x = 188,729,467,871.10/499,919.48
  6. Step 6: Final answer
    x = 377,519.73

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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.