Home / 814,276.68-1,221,498.81-281,796.90

Finding the Fourth Proportional to 814,276.68, 1,221,498.81 and 281,796.90

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Solution

The fourth proportional to 814,276.68, 1,221,498.81 and 281,796.90 is: 422,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,276.68 : 1,221,498.81 = 281,796.90 : x
  2. Step 2: Convert to fraction form
    814,276.68/1,221,498.81 = 281,796.90/x
  3. Step 3: Cross multiply
    814,276.68x = 1,221,498.81 × 281,796.90
  4. Step 4: Simplify right side
    814,276.68x = 344,214,578,011.69
  5. Step 5: Solve for x
    x = 344,214,578,011.69/814,276.68
  6. Step 6: Final answer
    x = 422,724.35

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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.