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Finding the Fourth Proportional to 496,632.48, 685,355.28 and 270,278

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Solution

The fourth proportional to 496,632.48, 685,355.28 and 270,278 is: 372,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,632.48 : 685,355.28 = 270,278 : x
  2. Step 2: Convert to fraction form
    496,632.48/685,355.28 = 270,278/x
  3. Step 3: Cross multiply
    496,632.48x = 685,355.28 × 270,278
  4. Step 4: Simplify right side
    496,632.48x = 185,236,454,367.84
  5. Step 5: Solve for x
    x = 185,236,454,367.84/496,632.48
  6. Step 6: Final answer
    x = 372,984.98

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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.