Home / 1,214,097.20-1,821,145.80-415,404.80

Finding the Fourth Proportional to 1,214,097.20, 1,821,145.80 and 415,404.80

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Solution

The fourth proportional to 1,214,097.20, 1,821,145.80 and 415,404.80 is: 623,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,097.20 : 1,821,145.80 = 415,404.80 : x
  2. Step 2: Convert to fraction form
    1,214,097.20/1,821,145.80 = 415,404.80/x
  3. Step 3: Cross multiply
    1,214,097.20x = 1,821,145.80 × 415,404.80
  4. Step 4: Simplify right side
    1,214,097.20x = 756,512,706,819.84
  5. Step 5: Solve for x
    x = 756,512,706,819.84/1,214,097.20
  6. Step 6: Final answer
    x = 623,107.20

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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.