Home / 1,109,790.96-1,531,394.28-644,553.96

Finding the Fourth Proportional to 1,109,790.96, 1,531,394.28 and 644,553.96

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Solution

The fourth proportional to 1,109,790.96, 1,531,394.28 and 644,553.96 is: 889,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,790.96 : 1,531,394.28 = 644,553.96 : x
  2. Step 2: Convert to fraction form
    1,109,790.96/1,531,394.28 = 644,553.96/x
  3. Step 3: Cross multiply
    1,109,790.96x = 1,531,394.28 × 644,553.96
  4. Step 4: Simplify right side
    1,109,790.96x = 987,066,247,495.35
  5. Step 5: Solve for x
    x = 987,066,247,495.35/1,109,790.96
  6. Step 6: Final answer
    x = 889,416.37

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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.