Home / 851,514.11-1,175,064.32-469,540.79

Finding the Fourth Proportional to 851,514.11, 1,175,064.32 and 469,540.79

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Solution

The fourth proportional to 851,514.11, 1,175,064.32 and 469,540.79 is: 647,952.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,514.11 : 1,175,064.32 = 469,540.79 : x
  2. Step 2: Convert to fraction form
    851,514.11/1,175,064.32 = 469,540.79/x
  3. Step 3: Cross multiply
    851,514.11x = 1,175,064.32 × 469,540.79
  4. Step 4: Simplify right side
    851,514.11x = 551,740,624,412.14
  5. Step 5: Solve for x
    x = 551,740,624,412.14/851,514.11
  6. Step 6: Final answer
    x = 647,952.42

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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.