Home / 1,236,952.80-1,856,043.60-489,023.20

Finding the Fourth Proportional to 1,236,952.80, 1,856,043.60 and 489,023.20

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Solution

The fourth proportional to 1,236,952.80, 1,856,043.60 and 489,023.20 is: 733,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,952.80 : 1,856,043.60 = 489,023.20 : x
  2. Step 2: Convert to fraction form
    1,236,952.80/1,856,043.60 = 489,023.20/x
  3. Step 3: Cross multiply
    1,236,952.80x = 1,856,043.60 × 489,023.20
  4. Step 4: Simplify right side
    1,236,952.80x = 907,648,380,611.52
  5. Step 5: Solve for x
    x = 907,648,380,611.52/1,236,952.80
  6. Step 6: Final answer
    x = 733,777.70

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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.