Home / 1,105,138.03-1,525,075.26-621,703.03

Finding the Fourth Proportional to 1,105,138.03, 1,525,075.26 and 621,703.03

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Solution

The fourth proportional to 1,105,138.03, 1,525,075.26 and 621,703.03 is: 857,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,138.03 : 1,525,075.26 = 621,703.03 : x
  2. Step 2: Convert to fraction form
    1,105,138.03/1,525,075.26 = 621,703.03/x
  3. Step 3: Cross multiply
    1,105,138.03x = 1,525,075.26 × 621,703.03
  4. Step 4: Simplify right side
    1,105,138.03x = 948,143,910,120.04
  5. Step 5: Solve for x
    x = 948,143,910,120.04/1,105,138.03
  6. Step 6: Final answer
    x = 857,941.62

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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.