Home / 489,517.20-675,533.16-285,708.24

Finding the Fourth Proportional to 489,517.20, 675,533.16 and 285,708.24

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Solution

The fourth proportional to 489,517.20, 675,533.16 and 285,708.24 is: 394,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,517.20 : 675,533.16 = 285,708.24 : x
  2. Step 2: Convert to fraction form
    489,517.20/675,533.16 = 285,708.24/x
  3. Step 3: Cross multiply
    489,517.20x = 675,533.16 × 285,708.24
  4. Step 4: Simplify right side
    489,517.20x = 193,005,390,205.24
  5. Step 5: Solve for x
    x = 193,005,390,205.24/489,517.20
  6. Step 6: Final answer
    x = 394,277.04

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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.