Home / 856,556.16-1,182,007.68-469,369.28

Finding the Fourth Proportional to 856,556.16, 1,182,007.68 and 469,369.28

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Solution

The fourth proportional to 856,556.16, 1,182,007.68 and 469,369.28 is: 647,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,556.16 : 1,182,007.68 = 469,369.28 : x
  2. Step 2: Convert to fraction form
    856,556.16/1,182,007.68 = 469,369.28/x
  3. Step 3: Cross multiply
    856,556.16x = 1,182,007.68 × 469,369.28
  4. Step 4: Simplify right side
    856,556.16x = 554,798,093,716.07
  5. Step 5: Solve for x
    x = 554,798,093,716.07/856,556.16
  6. Step 6: Final answer
    x = 647,707.79

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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.