Home / 725,261.45-1,087,890.97-192,782.48

Finding the Fourth Proportional to 725,261.45, 1,087,890.97 and 192,782.48

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Solution

The fourth proportional to 725,261.45, 1,087,890.97 and 192,782.48 is: 289,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,261.45 : 1,087,890.97 = 192,782.48 : x
  2. Step 2: Convert to fraction form
    725,261.45/1,087,890.97 = 192,782.48/x
  3. Step 3: Cross multiply
    725,261.45x = 1,087,890.97 × 192,782.48
  4. Step 4: Simplify right side
    725,261.45x = 209,726,319,166.21
  5. Step 5: Solve for x
    x = 209,726,319,166.21/725,261.45
  6. Step 6: Final answer
    x = 289,173.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.