Home / 1,289,613.34-1,935,914.57-691,742.14

Finding the Fourth Proportional to 1,289,613.34, 1,935,914.57 and 691,742.14

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Solution

The fourth proportional to 1,289,613.34, 1,935,914.57 and 691,742.14 is: 1,038,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,613.34 : 1,935,914.57 = 691,742.14 : x
  2. Step 2: Convert to fraction form
    1,289,613.34/1,935,914.57 = 691,742.14/x
  3. Step 3: Cross multiply
    1,289,613.34x = 1,935,914.57 × 691,742.14
  4. Step 4: Simplify right side
    1,289,613.34x = 1,339,153,687,508.98
  5. Step 5: Solve for x
    x = 1,339,153,687,508.98/1,289,613.34
  6. Step 6: Final answer
    x = 1,038,414.88

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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.