Home / 1,900,297.12-2,621,416.16-1,174,912.96

Finding the Fourth Proportional to 1,900,297.12, 2,621,416.16 and 1,174,912.96

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Solution

The fourth proportional to 1,900,297.12, 2,621,416.16 and 1,174,912.96 is: 1,620,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900,297.12 : 2,621,416.16 = 1,174,912.96 : x
  2. Step 2: Convert to fraction form
    1,900,297.12/2,621,416.16 = 1,174,912.96/x
  3. Step 3: Cross multiply
    1,900,297.12x = 2,621,416.16 × 1,174,912.96
  4. Step 4: Simplify right side
    1,900,297.12x = 3,079,935,819,937.43
  5. Step 5: Solve for x
    x = 3,079,935,819,937.43/1,900,297.12
  6. Step 6: Final answer
    x = 1,620,765.40

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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.