Home / 1,236,954.80-1,856,046.60-489,025.20

Finding the Fourth Proportional to 1,236,954.80, 1,856,046.60 and 489,025.20

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Solution

The fourth proportional to 1,236,954.80, 1,856,046.60 and 489,025.20 is: 733,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,954.80 : 1,856,046.60 = 489,025.20 : x
  2. Step 2: Convert to fraction form
    1,236,954.80/1,856,046.60 = 489,025.20/x
  3. Step 3: Cross multiply
    1,236,954.80x = 1,856,046.60 × 489,025.20
  4. Step 4: Simplify right side
    1,236,954.80x = 907,653,559,774.32
  5. Step 5: Solve for x
    x = 907,653,559,774.32/1,236,954.80
  6. Step 6: Final answer
    x = 733,780.70

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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.