Home / 814,324.70-1,221,487.05-557,904.38

Finding the Fourth Proportional to 814,324.70, 1,221,487.05 and 557,904.38

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Solution

The fourth proportional to 814,324.70, 1,221,487.05 and 557,904.38 is: 836,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,324.70 : 1,221,487.05 = 557,904.38 : x
  2. Step 2: Convert to fraction form
    814,324.70/1,221,487.05 = 557,904.38/x
  3. Step 3: Cross multiply
    814,324.70x = 1,221,487.05 × 557,904.38
  4. Step 4: Simplify right side
    814,324.70x = 681,472,975,308.28
  5. Step 5: Solve for x
    x = 681,472,975,308.28/814,324.70
  6. Step 6: Final answer
    x = 836,856.57

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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.