Home / 1,399,844.64-2,100,101.40-453,216.36

Finding the Fourth Proportional to 1,399,844.64, 2,100,101.40 and 453,216.36

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Solution

The fourth proportional to 1,399,844.64, 2,100,101.40 and 453,216.36 is: 679,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,844.64 : 2,100,101.40 = 453,216.36 : x
  2. Step 2: Convert to fraction form
    1,399,844.64/2,100,101.40 = 453,216.36/x
  3. Step 3: Cross multiply
    1,399,844.64x = 2,100,101.40 × 453,216.36
  4. Step 4: Simplify right side
    1,399,844.64x = 951,800,312,138.90
  5. Step 5: Solve for x
    x = 951,800,312,138.90/1,399,844.64
  6. Step 6: Final answer
    x = 679,932.82

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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.