Home / 2,111,428.12-3,166,821.36-691,452.76

Finding the Fourth Proportional to 2,111,428.12, 3,166,821.36 and 691,452.76

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Solution

The fourth proportional to 2,111,428.12, 3,166,821.36 and 691,452.76 is: 1,037,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111,428.12 : 3,166,821.36 = 691,452.76 : x
  2. Step 2: Convert to fraction form
    2,111,428.12/3,166,821.36 = 691,452.76/x
  3. Step 3: Cross multiply
    2,111,428.12x = 3,166,821.36 × 691,452.76
  4. Step 4: Simplify right side
    2,111,428.12x = 2,189,707,369,798.95
  5. Step 5: Solve for x
    x = 2,189,707,369,798.95/2,111,428.12
  6. Step 6: Final answer
    x = 1,037,074.08

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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.