Home / 1,389,094.68-2,082,221.16-939,863

Finding the Fourth Proportional to 1,389,094.68, 2,082,221.16 and 939,863

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Solution

The fourth proportional to 1,389,094.68, 2,082,221.16 and 939,863 is: 1,408,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,094.68 : 2,082,221.16 = 939,863 : x
  2. Step 2: Convert to fraction form
    1,389,094.68/2,082,221.16 = 939,863/x
  3. Step 3: Cross multiply
    1,389,094.68x = 2,082,221.16 × 939,863
  4. Step 4: Simplify right side
    1,389,094.68x = 1,957,002,626,101.08
  5. Step 5: Solve for x
    x = 1,957,002,626,101.08/1,389,094.68
  6. Step 6: Final answer
    x = 1,408,833.14

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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.