Home / 1,320,006.80-1,821,611.40-716,396.24

Finding the Fourth Proportional to 1,320,006.80, 1,821,611.40 and 716,396.24

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Solution

The fourth proportional to 1,320,006.80, 1,821,611.40 and 716,396.24 is: 988,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,006.80 : 1,821,611.40 = 716,396.24 : x
  2. Step 2: Convert to fraction form
    1,320,006.80/1,821,611.40 = 716,396.24/x
  3. Step 3: Cross multiply
    1,320,006.80x = 1,821,611.40 × 716,396.24
  4. Step 4: Simplify right side
    1,320,006.80x = 1,304,995,557,701.14
  5. Step 5: Solve for x
    x = 1,304,995,557,701.14/1,320,006.80
  6. Step 6: Final answer
    x = 988,627.91

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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.