Home / 659,379.39-909,742.64-368,960.82

Finding the Fourth Proportional to 659,379.39, 909,742.64 and 368,960.82

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Solution

The fourth proportional to 659,379.39, 909,742.64 and 368,960.82 is: 509,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,379.39 : 909,742.64 = 368,960.82 : x
  2. Step 2: Convert to fraction form
    659,379.39/909,742.64 = 368,960.82/x
  3. Step 3: Cross multiply
    659,379.39x = 909,742.64 × 368,960.82
  4. Step 4: Simplify right side
    659,379.39x = 335,659,392,379.73
  5. Step 5: Solve for x
    x = 335,659,392,379.73/659,379.39
  6. Step 6: Final answer
    x = 509,053.51

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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.