Home / 1,297,899.78-1,948,070.75-658,662.36

Finding the Fourth Proportional to 1,297,899.78, 1,948,070.75 and 658,662.36

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Solution

The fourth proportional to 1,297,899.78, 1,948,070.75 and 658,662.36 is: 988,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,899.78 : 1,948,070.75 = 658,662.36 : x
  2. Step 2: Convert to fraction form
    1,297,899.78/1,948,070.75 = 658,662.36/x
  3. Step 3: Cross multiply
    1,297,899.78x = 1,948,070.75 × 658,662.36
  4. Step 4: Simplify right side
    1,297,899.78x = 1,283,120,874,348.66
  5. Step 5: Solve for x
    x = 1,283,120,874,348.66/1,297,899.78
  6. Step 6: Final answer
    x = 988,613.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.