Home / 1,242,007.20-1,863,010.80-675,136.80

Finding the Fourth Proportional to 1,242,007.20, 1,863,010.80 and 675,136.80

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Solution

The fourth proportional to 1,242,007.20, 1,863,010.80 and 675,136.80 is: 1,012,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,007.20 : 1,863,010.80 = 675,136.80 : x
  2. Step 2: Convert to fraction form
    1,242,007.20/1,863,010.80 = 675,136.80/x
  3. Step 3: Cross multiply
    1,242,007.20x = 1,863,010.80 × 675,136.80
  4. Step 4: Simplify right side
    1,242,007.20x = 1,257,787,149,877.44
  5. Step 5: Solve for x
    x = 1,257,787,149,877.44/1,242,007.20
  6. Step 6: Final answer
    x = 1,012,705.20

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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.