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Finding the Fourth Proportional to 496,554, 685,238.76 and 270,195.60

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Solution

The fourth proportional to 496,554, 685,238.76 and 270,195.60 is: 372,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,554 : 685,238.76 = 270,195.60 : x
  2. Step 2: Convert to fraction form
    496,554/685,238.76 = 270,195.60/x
  3. Step 3: Cross multiply
    496,554x = 685,238.76 × 270,195.60
  4. Step 4: Simplify right side
    496,554x = 185,148,497,901.46
  5. Step 5: Solve for x
    x = 185,148,497,901.46/496,554
  6. Step 6: Final answer
    x = 372,866.79

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1.5x scale

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.