Home / 1,299,361.98-1,793,109.05-718,609.58

Finding the Fourth Proportional to 1,299,361.98, 1,793,109.05 and 718,609.58

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Solution

The fourth proportional to 1,299,361.98, 1,793,109.05 and 718,609.58 is: 991,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,361.98 : 1,793,109.05 = 718,609.58 : x
  2. Step 2: Convert to fraction form
    1,299,361.98/1,793,109.05 = 718,609.58/x
  3. Step 3: Cross multiply
    1,299,361.98x = 1,793,109.05 × 718,609.58
  4. Step 4: Simplify right side
    1,299,361.98x = 1,288,545,343,218.17
  5. Step 5: Solve for x
    x = 1,288,545,343,218.17/1,299,361.98
  6. Step 6: Final answer
    x = 991,675.42

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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.