Home / 814,112.94-1,220,299.29-434,799.66

Finding the Fourth Proportional to 814,112.94, 1,220,299.29 and 434,799.66

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Solution

The fourth proportional to 814,112.94, 1,220,299.29 and 434,799.66 is: 651,734.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,112.94 : 1,220,299.29 = 434,799.66 : x
  2. Step 2: Convert to fraction form
    814,112.94/1,220,299.29 = 434,799.66/x
  3. Step 3: Cross multiply
    814,112.94x = 1,220,299.29 × 434,799.66
  4. Step 4: Simplify right side
    814,112.94x = 530,585,716,390.24
  5. Step 5: Solve for x
    x = 530,585,716,390.24/814,112.94
  6. Step 6: Final answer
    x = 651,734.78

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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.