Home / 826,736.80-1,240,106.10-328,100.80

Finding the Fourth Proportional to 826,736.80, 1,240,106.10 and 328,100.80

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Solution

The fourth proportional to 826,736.80, 1,240,106.10 and 328,100.80 is: 492,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,736.80 : 1,240,106.10 = 328,100.80 : x
  2. Step 2: Convert to fraction form
    826,736.80/1,240,106.10 = 328,100.80/x
  3. Step 3: Cross multiply
    826,736.80x = 1,240,106.10 × 328,100.80
  4. Step 4: Simplify right side
    826,736.80x = 406,879,803,494.88
  5. Step 5: Solve for x
    x = 406,879,803,494.88/826,736.80
  6. Step 6: Final answer
    x = 492,151.56

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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.