Home / 1,292,879.20-1,942,429.20-1,156,021.60

Finding the Fourth Proportional to 1,292,879.20, 1,942,429.20 and 1,156,021.60

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Solution

The fourth proportional to 1,292,879.20, 1,942,429.20 and 1,156,021.60 is: 1,736,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,879.20 : 1,942,429.20 = 1,156,021.60 : x
  2. Step 2: Convert to fraction form
    1,292,879.20/1,942,429.20 = 1,156,021.60/x
  3. Step 3: Cross multiply
    1,292,879.20x = 1,942,429.20 × 1,156,021.60
  4. Step 4: Simplify right side
    1,292,879.20x = 2,245,490,111,670.72
  5. Step 5: Solve for x
    x = 2,245,490,111,670.72/1,292,879.20
  6. Step 6: Final answer
    x = 1,736,813.55

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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.