Home / 814,422.63-1,220,908.02-309,338.31

Finding the Fourth Proportional to 814,422.63, 1,220,908.02 and 309,338.31

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Solution

The fourth proportional to 814,422.63, 1,220,908.02 and 309,338.31 is: 463,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,422.63 : 1,220,908.02 = 309,338.31 : x
  2. Step 2: Convert to fraction form
    814,422.63/1,220,908.02 = 309,338.31/x
  3. Step 3: Cross multiply
    814,422.63x = 1,220,908.02 × 309,338.31
  4. Step 4: Simplify right side
    814,422.63x = 377,673,621,863.05
  5. Step 5: Solve for x
    x = 377,673,621,863.05/814,422.63
  6. Step 6: Final answer
    x = 463,731.74

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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.