Home / 1,105,174.30-1,525,137.94-621,739.30

Finding the Fourth Proportional to 1,105,174.30, 1,525,137.94 and 621,739.30

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Solution

The fourth proportional to 1,105,174.30, 1,525,137.94 and 621,739.30 is: 857,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,174.30 : 1,525,137.94 = 621,739.30 : x
  2. Step 2: Convert to fraction form
    1,105,174.30/1,525,137.94 = 621,739.30/x
  3. Step 3: Cross multiply
    1,105,174.30x = 1,525,137.94 × 621,739.30
  4. Step 4: Simplify right side
    1,105,174.30x = 948,238,195,219.04
  5. Step 5: Solve for x
    x = 948,238,195,219.04/1,105,174.30
  6. Step 6: Final answer
    x = 857,998.77

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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.