Home / 1,620,128.24-2,236,049.90-941,458.40

Finding the Fourth Proportional to 1,620,128.24, 2,236,049.90 and 941,458.40

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Solution

The fourth proportional to 1,620,128.24, 2,236,049.90 and 941,458.40 is: 1,299,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,128.24 : 2,236,049.90 = 941,458.40 : x
  2. Step 2: Convert to fraction form
    1,620,128.24/2,236,049.90 = 941,458.40/x
  3. Step 3: Cross multiply
    1,620,128.24x = 2,236,049.90 × 941,458.40
  4. Step 4: Simplify right side
    1,620,128.24x = 2,105,147,961,174.16
  5. Step 5: Solve for x
    x = 2,105,147,961,174.16/1,620,128.24
  6. Step 6: Final answer
    x = 1,299,371.19

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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.