Home / 499,781.04-689,698-273,431.36

Finding the Fourth Proportional to 499,781.04, 689,698 and 273,431.36

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Solution

The fourth proportional to 499,781.04, 689,698 and 273,431.36 is: 377,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,781.04 : 689,698 = 273,431.36 : x
  2. Step 2: Convert to fraction form
    499,781.04/689,698 = 273,431.36/x
  3. Step 3: Cross multiply
    499,781.04x = 689,698 × 273,431.36
  4. Step 4: Simplify right side
    499,781.04x = 188,585,062,129.28
  5. Step 5: Solve for x
    x = 188,585,062,129.28/499,781.04
  6. Step 6: Final answer
    x = 377,335.37

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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.