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Finding the Fourth Proportional to 554,590.97, 765,335.54 and 299,942.16

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Solution

The fourth proportional to 554,590.97, 765,335.54 and 299,942.16 is: 413,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,590.97 : 765,335.54 = 299,942.16 : x
  2. Step 2: Convert to fraction form
    554,590.97/765,335.54 = 299,942.16/x
  3. Step 3: Cross multiply
    554,590.97x = 765,335.54 × 299,942.16
  4. Step 4: Simplify right side
    554,590.97x = 229,556,394,992.37
  5. Step 5: Solve for x
    x = 229,556,394,992.37/554,590.97
  6. Step 6: Final answer
    x = 413,920.18

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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.