Home / 814,073.36-1,221,168.84-215,026.72

Finding the Fourth Proportional to 814,073.36, 1,221,168.84 and 215,026.72

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Solution

The fourth proportional to 814,073.36, 1,221,168.84 and 215,026.72 is: 322,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,073.36 : 1,221,168.84 = 215,026.72 : x
  2. Step 2: Convert to fraction form
    814,073.36/1,221,168.84 = 215,026.72/x
  3. Step 3: Cross multiply
    814,073.36x = 1,221,168.84 × 215,026.72
  4. Step 4: Simplify right side
    814,073.36x = 262,583,930,231.41
  5. Step 5: Solve for x
    x = 262,583,930,231.41/814,073.36
  6. Step 6: Final answer
    x = 322,555.61

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1.5x scale

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.