Home / 3,419,346.78-5,129,026.54-1,397,589.20

Finding the Fourth Proportional to 3,419,346.78, 5,129,026.54 and 1,397,589.20

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Solution

The fourth proportional to 3,419,346.78, 5,129,026.54 and 1,397,589.20 is: 2,096,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,346.78 : 5,129,026.54 = 1,397,589.20 : x
  2. Step 2: Convert to fraction form
    3,419,346.78/5,129,026.54 = 1,397,589.20/x
  3. Step 3: Cross multiply
    3,419,346.78x = 5,129,026.54 × 1,397,589.20
  4. Step 4: Simplify right side
    3,419,346.78x = 7,168,272,098,817.37
  5. Step 5: Solve for x
    x = 7,168,272,098,817.37/3,419,346.78
  6. Step 6: Final answer
    x = 2,096,386.40

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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.