Home / 814,655.54-1,222,043.26-215,612.64

Finding the Fourth Proportional to 814,655.54, 1,222,043.26 and 215,612.64

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Solution

The fourth proportional to 814,655.54, 1,222,043.26 and 215,612.64 is: 323,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,655.54 : 1,222,043.26 = 215,612.64 : x
  2. Step 2: Convert to fraction form
    814,655.54/1,222,043.26 = 215,612.64/x
  3. Step 3: Cross multiply
    814,655.54x = 1,222,043.26 × 215,612.64
  4. Step 4: Simplify right side
    814,655.54x = 263,487,973,482.81
  5. Step 5: Solve for x
    x = 263,487,973,482.81/814,655.54
  6. Step 6: Final answer
    x = 323,434.83

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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.