Home / 825,372.72-1,138,530.69-518,963.49

Finding the Fourth Proportional to 825,372.72, 1,138,530.69 and 518,963.49

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Solution

The fourth proportional to 825,372.72, 1,138,530.69 and 518,963.49 is: 715,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,372.72 : 1,138,530.69 = 518,963.49 : x
  2. Step 2: Convert to fraction form
    825,372.72/1,138,530.69 = 518,963.49/x
  3. Step 3: Cross multiply
    825,372.72x = 1,138,530.69 × 518,963.49
  4. Step 4: Simplify right side
    825,372.72x = 590,855,860,354.51
  5. Step 5: Solve for x
    x = 590,855,860,354.51/825,372.72
  6. Step 6: Final answer
    x = 715,865.51

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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.