Home / 1,190,236.62-1,785,122.44-380,403.80

Finding the Fourth Proportional to 1,190,236.62, 1,785,122.44 and 380,403.80

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Solution

The fourth proportional to 1,190,236.62, 1,785,122.44 and 380,403.80 is: 570,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,236.62 : 1,785,122.44 = 380,403.80 : x
  2. Step 2: Convert to fraction form
    1,190,236.62/1,785,122.44 = 380,403.80/x
  3. Step 3: Cross multiply
    1,190,236.62x = 1,785,122.44 × 380,403.80
  4. Step 4: Simplify right side
    1,190,236.62x = 679,067,356,458.86
  5. Step 5: Solve for x
    x = 679,067,356,458.86/1,190,236.62
  6. Step 6: Final answer
    x = 570,531.39

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1.5x scale

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.