Home / 1,261,112.20-1,739,879.92-970,812.52

Finding the Fourth Proportional to 1,261,112.20, 1,739,879.92 and 970,812.52

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Solution

The fourth proportional to 1,261,112.20, 1,739,879.92 and 970,812.52 is: 1,339,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,112.20 : 1,739,879.92 = 970,812.52 : x
  2. Step 2: Convert to fraction form
    1,261,112.20/1,739,879.92 = 970,812.52/x
  3. Step 3: Cross multiply
    1,261,112.20x = 1,739,879.92 × 970,812.52
  4. Step 4: Simplify right side
    1,261,112.20x = 1,689,097,209,632.60
  5. Step 5: Solve for x
    x = 1,689,097,209,632.60/1,261,112.20
  6. Step 6: Final answer
    x = 1,339,371.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.