Home / 1,321,626.60-1,981,127.70-610,414.20

Finding the Fourth Proportional to 1,321,626.60, 1,981,127.70 and 610,414.20

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Solution

The fourth proportional to 1,321,626.60, 1,981,127.70 and 610,414.20 is: 915,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,626.60 : 1,981,127.70 = 610,414.20 : x
  2. Step 2: Convert to fraction form
    1,321,626.60/1,981,127.70 = 610,414.20/x
  3. Step 3: Cross multiply
    1,321,626.60x = 1,981,127.70 × 610,414.20
  4. Step 4: Simplify right side
    1,321,626.60x = 1,209,308,480,093.34
  5. Step 5: Solve for x
    x = 1,209,308,480,093.34/1,321,626.60
  6. Step 6: Final answer
    x = 915,015.24

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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.