Home / 1,420,087.80-1,958,610.06-910,836.60

Finding the Fourth Proportional to 1,420,087.80, 1,958,610.06 and 910,836.60

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Solution

The fourth proportional to 1,420,087.80, 1,958,610.06 and 910,836.60 is: 1,256,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,087.80 : 1,958,610.06 = 910,836.60 : x
  2. Step 2: Convert to fraction form
    1,420,087.80/1,958,610.06 = 910,836.60/x
  3. Step 3: Cross multiply
    1,420,087.80x = 1,958,610.06 × 910,836.60
  4. Step 4: Simplify right side
    1,420,087.80x = 1,783,973,727,776.20
  5. Step 5: Solve for x
    x = 1,783,973,727,776.20/1,420,087.80
  6. Step 6: Final answer
    x = 1,256,241.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.