Home / 1,320,365.80-1,821,918.18-747,371.80

Finding the Fourth Proportional to 1,320,365.80, 1,821,918.18 and 747,371.80

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Solution

The fourth proportional to 1,320,365.80, 1,821,918.18 and 747,371.80 is: 1,031,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,365.80 : 1,821,918.18 = 747,371.80 : x
  2. Step 2: Convert to fraction form
    1,320,365.80/1,821,918.18 = 747,371.80/x
  3. Step 3: Cross multiply
    1,320,365.80x = 1,821,918.18 × 747,371.80
  4. Step 4: Simplify right side
    1,320,365.80x = 1,361,650,269,639.32
  5. Step 5: Solve for x
    x = 1,361,650,269,639.32/1,320,365.80
  6. Step 6: Final answer
    x = 1,031,267.45

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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.