Home / 814,051.71-1,221,263.58-281,572.29

Finding the Fourth Proportional to 814,051.71, 1,221,263.58 and 281,572.29

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Solution

The fourth proportional to 814,051.71, 1,221,263.58 and 281,572.29 is: 422,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,051.71 : 1,221,263.58 = 281,572.29 : x
  2. Step 2: Convert to fraction form
    814,051.71/1,221,263.58 = 281,572.29/x
  3. Step 3: Cross multiply
    814,051.71x = 1,221,263.58 × 281,572.29
  4. Step 4: Simplify right side
    814,051.71x = 343,873,982,914.20
  5. Step 5: Solve for x
    x = 343,873,982,914.20/814,051.71
  6. Step 6: Final answer
    x = 422,422.78

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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.