Home / 814,664.52-1,222,056.72-215,621.64

Finding the Fourth Proportional to 814,664.52, 1,222,056.72 and 215,621.64

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Solution

The fourth proportional to 814,664.52, 1,222,056.72 and 215,621.64 is: 323,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,664.52 : 1,222,056.72 = 215,621.64 : x
  2. Step 2: Convert to fraction form
    814,664.52/1,222,056.72 = 215,621.64/x
  3. Step 3: Cross multiply
    814,664.52x = 1,222,056.72 × 215,621.64
  4. Step 4: Simplify right side
    814,664.52x = 263,501,874,139.42
  5. Step 5: Solve for x
    x = 263,501,874,139.42/814,664.52
  6. Step 6: Final answer
    x = 323,448.32

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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.