Home / 814,275.12-1,221,496.60-281,795.28

Finding the Fourth Proportional to 814,275.12, 1,221,496.60 and 281,795.28

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Solution

The fourth proportional to 814,275.12, 1,221,496.60 and 281,795.28 is: 422,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,275.12 : 1,221,496.60 = 281,795.28 : x
  2. Step 2: Convert to fraction form
    814,275.12/1,221,496.60 = 281,795.28/x
  3. Step 3: Cross multiply
    814,275.12x = 1,221,496.60 × 281,795.28
  4. Step 4: Simplify right side
    814,275.12x = 344,211,976,416.05
  5. Step 5: Solve for x
    x = 344,211,976,416.05/814,275.12
  6. Step 6: Final answer
    x = 422,721.96

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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.