Home / 1,317,181.96-1,976,064.54-418,898.44

Finding the Fourth Proportional to 1,317,181.96, 1,976,064.54 and 418,898.44

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Solution

The fourth proportional to 1,317,181.96, 1,976,064.54 and 418,898.44 is: 628,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,181.96 : 1,976,064.54 = 418,898.44 : x
  2. Step 2: Convert to fraction form
    1,317,181.96/1,976,064.54 = 418,898.44/x
  3. Step 3: Cross multiply
    1,317,181.96x = 1,976,064.54 × 418,898.44
  4. Step 4: Simplify right side
    1,317,181.96x = 827,770,353,145.32
  5. Step 5: Solve for x
    x = 827,770,353,145.32/1,317,181.96
  6. Step 6: Final answer
    x = 628,440.40

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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.