Home / 1,317,622.50-1,976,433.75-419,066.10

Finding the Fourth Proportional to 1,317,622.50, 1,976,433.75 and 419,066.10

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Solution

The fourth proportional to 1,317,622.50, 1,976,433.75 and 419,066.10 is: 628,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,622.50 : 1,976,433.75 = 419,066.10 : x
  2. Step 2: Convert to fraction form
    1,317,622.50/1,976,433.75 = 419,066.10/x
  3. Step 3: Cross multiply
    1,317,622.50x = 1,976,433.75 × 419,066.10
  4. Step 4: Simplify right side
    1,317,622.50x = 828,256,383,520.88
  5. Step 5: Solve for x
    x = 828,256,383,520.88/1,317,622.50
  6. Step 6: Final answer
    x = 628,599.15

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Double scale
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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.