Home / 1,222,905.08-1,687,743.89-699,664.30

Finding the Fourth Proportional to 1,222,905.08, 1,687,743.89 and 699,664.30

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Solution

The fourth proportional to 1,222,905.08, 1,687,743.89 and 699,664.30 is: 965,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,905.08 : 1,687,743.89 = 699,664.30 : x
  2. Step 2: Convert to fraction form
    1,222,905.08/1,687,743.89 = 699,664.30/x
  3. Step 3: Cross multiply
    1,222,905.08x = 1,687,743.89 × 699,664.30
  4. Step 4: Simplify right side
    1,222,905.08x = 1,180,854,142,282.19
  5. Step 5: Solve for x
    x = 1,180,854,142,282.19/1,222,905.08
  6. Step 6: Final answer
    x = 965,613.90

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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.