Home / 1,288,960-1,933,850.88-540,805.12

Finding the Fourth Proportional to 1,288,960, 1,933,850.88 and 540,805.12

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Solution

The fourth proportional to 1,288,960, 1,933,850.88 and 540,805.12 is: 811,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,960 : 1,933,850.88 = 540,805.12 : x
  2. Step 2: Convert to fraction form
    1,288,960/1,933,850.88 = 540,805.12/x
  3. Step 3: Cross multiply
    1,288,960x = 1,933,850.88 × 540,805.12
  4. Step 4: Simplify right side
    1,288,960x = 1,045,836,457,220.51
  5. Step 5: Solve for x
    x = 1,045,836,457,220.51/1,288,960
  6. Step 6: Final answer
    x = 811,380.07

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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.