Home / 1,297,661.33-1,790,766.72-716,884.62

Finding the Fourth Proportional to 1,297,661.33, 1,790,766.72 and 716,884.62

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Solution

The fourth proportional to 1,297,661.33, 1,790,766.72 and 716,884.62 is: 989,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,661.33 : 1,790,766.72 = 716,884.62 : x
  2. Step 2: Convert to fraction form
    1,297,661.33/1,790,766.72 = 716,884.62/x
  3. Step 3: Cross multiply
    1,297,661.33x = 1,790,766.72 × 716,884.62
  4. Step 4: Simplify right side
    1,297,661.33x = 1,283,773,119,575.85
  5. Step 5: Solve for x
    x = 1,283,773,119,575.85/1,297,661.33
  6. Step 6: Final answer
    x = 989,297.51

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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.