Home / 1,297,662.33-1,790,768.10-716,885.62

Finding the Fourth Proportional to 1,297,662.33, 1,790,768.10 and 716,885.62

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Solution

The fourth proportional to 1,297,662.33, 1,790,768.10 and 716,885.62 is: 989,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,662.33 : 1,790,768.10 = 716,885.62 : x
  2. Step 2: Convert to fraction form
    1,297,662.33/1,790,768.10 = 716,885.62/x
  3. Step 3: Cross multiply
    1,297,662.33x = 1,790,768.10 × 716,885.62
  4. Step 4: Simplify right side
    1,297,662.33x = 1,283,775,899,644.72
  5. Step 5: Solve for x
    x = 1,283,775,899,644.72/1,297,662.33
  6. Step 6: Final answer
    x = 989,298.89

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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.