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Finding the Fourth Proportional to 1,367,874.87, 1,887,765 and 756,014.48

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Solution

The fourth proportional to 1,367,874.87, 1,887,765 and 756,014.48 is: 1,043,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,874.87 : 1,887,765 = 756,014.48 : x
  2. Step 2: Convert to fraction form
    1,367,874.87/1,887,765 = 756,014.48/x
  3. Step 3: Cross multiply
    1,367,874.87x = 1,887,765 × 756,014.48
  4. Step 4: Simplify right side
    1,367,874.87x = 1,427,177,674,837.20
  5. Step 5: Solve for x
    x = 1,427,177,674,837.20/1,367,874.87
  6. Step 6: Final answer
    x = 1,043,353.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.