Home / 1,320,551.20-1,979,077.20-1,170,085.60

Finding the Fourth Proportional to 1,320,551.20, 1,979,077.20 and 1,170,085.60

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Solution

The fourth proportional to 1,320,551.20, 1,979,077.20 and 1,170,085.60 is: 1,753,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,551.20 : 1,979,077.20 = 1,170,085.60 : x
  2. Step 2: Convert to fraction form
    1,320,551.20/1,979,077.20 = 1,170,085.60/x
  3. Step 3: Cross multiply
    1,320,551.20x = 1,979,077.20 × 1,170,085.60
  4. Step 4: Simplify right side
    1,320,551.20x = 2,315,689,733,008.32
  5. Step 5: Solve for x
    x = 2,315,689,733,008.32/1,320,551.20
  6. Step 6: Final answer
    x = 1,753,578.15

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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.