Home / 839,791.65-1,260,415.39-440,714.37

Finding the Fourth Proportional to 839,791.65, 1,260,415.39 and 440,714.37

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Solution

The fourth proportional to 839,791.65, 1,260,415.39 and 440,714.37 is: 661,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,791.65 : 1,260,415.39 = 440,714.37 : x
  2. Step 2: Convert to fraction form
    839,791.65/1,260,415.39 = 440,714.37/x
  3. Step 3: Cross multiply
    839,791.65x = 1,260,415.39 × 440,714.37
  4. Step 4: Simplify right side
    839,791.65x = 555,483,174,542.15
  5. Step 5: Solve for x
    x = 555,483,174,542.15/839,791.65
  6. Step 6: Final answer
    x = 661,453.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.