Home / 1,388,613.60-1,917,042.48-905,473.44

Finding the Fourth Proportional to 1,388,613.60, 1,917,042.48 and 905,473.44

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Solution

The fourth proportional to 1,388,613.60, 1,917,042.48 and 905,473.44 is: 1,250,046.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,613.60 : 1,917,042.48 = 905,473.44 : x
  2. Step 2: Convert to fraction form
    1,388,613.60/1,917,042.48 = 905,473.44/x
  3. Step 3: Cross multiply
    1,388,613.60x = 1,917,042.48 × 905,473.44
  4. Step 4: Simplify right side
    1,388,613.60x = 1,735,831,048,991.73
  5. Step 5: Solve for x
    x = 1,735,831,048,991.73/1,388,613.60
  6. Step 6: Final answer
    x = 1,250,046.12

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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.