Home / 814,275.18-1,221,496.56-281,795.40

Finding the Fourth Proportional to 814,275.18, 1,221,496.56 and 281,795.40

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Solution

The fourth proportional to 814,275.18, 1,221,496.56 and 281,795.40 is: 422,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,275.18 : 1,221,496.56 = 281,795.40 : x
  2. Step 2: Convert to fraction form
    814,275.18/1,221,496.56 = 281,795.40/x
  3. Step 3: Cross multiply
    814,275.18x = 1,221,496.56 × 281,795.40
  4. Step 4: Simplify right side
    814,275.18x = 344,212,111,723.82
  5. Step 5: Solve for x
    x = 344,212,111,723.82/814,275.18
  6. Step 6: Final answer
    x = 422,722.10

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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.