Home / 1,328,738.80-1,993,108.20-767,117.20

Finding the Fourth Proportional to 1,328,738.80, 1,993,108.20 and 767,117.20

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Solution

The fourth proportional to 1,328,738.80, 1,993,108.20 and 767,117.20 is: 1,150,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,738.80 : 1,993,108.20 = 767,117.20 : x
  2. Step 2: Convert to fraction form
    1,328,738.80/1,993,108.20 = 767,117.20/x
  3. Step 3: Cross multiply
    1,328,738.80x = 1,993,108.20 × 767,117.20
  4. Step 4: Simplify right side
    1,328,738.80x = 1,528,947,581,681.04
  5. Step 5: Solve for x
    x = 1,528,947,581,681.04/1,328,738.80
  6. Step 6: Final answer
    x = 1,150,675.80

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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.