Home / 1,086,670.20-1,628,450.10-753,857.40

Finding the Fourth Proportional to 1,086,670.20, 1,628,450.10 and 753,857.40

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Solution

The fourth proportional to 1,086,670.20, 1,628,450.10 and 753,857.40 is: 1,129,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,670.20 : 1,628,450.10 = 753,857.40 : x
  2. Step 2: Convert to fraction form
    1,086,670.20/1,628,450.10 = 753,857.40/x
  3. Step 3: Cross multiply
    1,086,670.20x = 1,628,450.10 × 753,857.40
  4. Step 4: Simplify right side
    1,086,670.20x = 1,227,619,158,415.74
  5. Step 5: Solve for x
    x = 1,227,619,158,415.74/1,086,670.20
  6. Step 6: Final answer
    x = 1,129,707.21

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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.