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Finding the Fourth Proportional to 1,560,558, 2,340,837 and 378,606

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Solution

The fourth proportional to 1,560,558, 2,340,837 and 378,606 is: 567,909

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,558 : 2,340,837 = 378,606 : x
  2. Step 2: Convert to fraction form
    1,560,558/2,340,837 = 378,606/x
  3. Step 3: Cross multiply
    1,560,558x = 2,340,837 × 378,606
  4. Step 4: Simplify right side
    1,560,558x = 886,254,933,222
  5. Step 5: Solve for x
    x = 886,254,933,222/1,560,558
  6. Step 6: Final answer
    x = 567,909

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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.