Home / 1,538,891.20-2,308,336.80-972,020.80

Finding the Fourth Proportional to 1,538,891.20, 2,308,336.80 and 972,020.80

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Solution

The fourth proportional to 1,538,891.20, 2,308,336.80 and 972,020.80 is: 1,458,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,891.20 : 2,308,336.80 = 972,020.80 : x
  2. Step 2: Convert to fraction form
    1,538,891.20/2,308,336.80 = 972,020.80/x
  3. Step 3: Cross multiply
    1,538,891.20x = 2,308,336.80 × 972,020.80
  4. Step 4: Simplify right side
    1,538,891.20x = 2,243,751,383,005.44
  5. Step 5: Solve for x
    x = 2,243,751,383,005.44/1,538,891.20
  6. Step 6: Final answer
    x = 1,458,031.20

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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.