Home / 1,320,075-1,821,708.36-716,463

Finding the Fourth Proportional to 1,320,075, 1,821,708.36 and 716,463

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Solution

The fourth proportional to 1,320,075, 1,821,708.36 and 716,463 is: 988,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,075 : 1,821,708.36 = 716,463 : x
  2. Step 2: Convert to fraction form
    1,320,075/1,821,708.36 = 716,463/x
  3. Step 3: Cross multiply
    1,320,075x = 1,821,708.36 × 716,463
  4. Step 4: Simplify right side
    1,320,075x = 1,305,186,636,730.68
  5. Step 5: Solve for x
    x = 1,305,186,636,730.68/1,320,075
  6. Step 6: Final answer
    x = 988,721.58

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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.