Home / 1,214,010.30-1,821,015.45-415,172.10

Finding the Fourth Proportional to 1,214,010.30, 1,821,015.45 and 415,172.10

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Solution

The fourth proportional to 1,214,010.30, 1,821,015.45 and 415,172.10 is: 622,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,010.30 : 1,821,015.45 = 415,172.10 : x
  2. Step 2: Convert to fraction form
    1,214,010.30/1,821,015.45 = 415,172.10/x
  3. Step 3: Cross multiply
    1,214,010.30x = 1,821,015.45 × 415,172.10
  4. Step 4: Simplify right side
    1,214,010.30x = 756,034,808,508.95
  5. Step 5: Solve for x
    x = 756,034,808,508.95/1,214,010.30
  6. Step 6: Final answer
    x = 622,758.15

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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.