Home / 767,043.72-1,058,556.66-427,514.44

Finding the Fourth Proportional to 767,043.72, 1,058,556.66 and 427,514.44

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Solution

The fourth proportional to 767,043.72, 1,058,556.66 and 427,514.44 is: 589,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,043.72 : 1,058,556.66 = 427,514.44 : x
  2. Step 2: Convert to fraction form
    767,043.72/1,058,556.66 = 427,514.44/x
  3. Step 3: Cross multiply
    767,043.72x = 1,058,556.66 × 427,514.44
  4. Step 4: Simplify right side
    767,043.72x = 452,548,257,708.17
  5. Step 5: Solve for x
    x = 452,548,257,708.17/767,043.72
  6. Step 6: Final answer
    x = 589,990.17

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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.