Home / 1,097,171.20-1,645,756.80-1,081,424.80

Finding the Fourth Proportional to 1,097,171.20, 1,645,756.80 and 1,081,424.80

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Solution

The fourth proportional to 1,097,171.20, 1,645,756.80 and 1,081,424.80 is: 1,622,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,171.20 : 1,645,756.80 = 1,081,424.80 : x
  2. Step 2: Convert to fraction form
    1,097,171.20/1,645,756.80 = 1,081,424.80/x
  3. Step 3: Cross multiply
    1,097,171.20x = 1,645,756.80 × 1,081,424.80
  4. Step 4: Simplify right side
    1,097,171.20x = 1,779,762,218,288.64
  5. Step 5: Solve for x
    x = 1,779,762,218,288.64/1,097,171.20
  6. Step 6: Final answer
    x = 1,622,137.20

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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.