Home / 1,236,948.80-1,856,037.60-489,019.20

Finding the Fourth Proportional to 1,236,948.80, 1,856,037.60 and 489,019.20

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Solution

The fourth proportional to 1,236,948.80, 1,856,037.60 and 489,019.20 is: 733,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,948.80 : 1,856,037.60 = 489,019.20 : x
  2. Step 2: Convert to fraction form
    1,236,948.80/1,856,037.60 = 489,019.20/x
  3. Step 3: Cross multiply
    1,236,948.80x = 1,856,037.60 × 489,019.20
  4. Step 4: Simplify right side
    1,236,948.80x = 907,638,022,321.92
  5. Step 5: Solve for x
    x = 907,638,022,321.92/1,236,948.80
  6. Step 6: Final answer
    x = 733,771.70

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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.