Home / 1,231,123.96-1,695,190.14-1,115,651.47

Finding the Fourth Proportional to 1,231,123.96, 1,695,190.14 and 1,115,651.47

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Solution

The fourth proportional to 1,231,123.96, 1,695,190.14 and 1,115,651.47 is: 1,536,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,123.96 : 1,695,190.14 = 1,115,651.47 : x
  2. Step 2: Convert to fraction form
    1,231,123.96/1,695,190.14 = 1,115,651.47/x
  3. Step 3: Cross multiply
    1,231,123.96x = 1,695,190.14 × 1,115,651.47
  4. Step 4: Simplify right side
    1,231,123.96x = 1,891,241,371,620.51
  5. Step 5: Solve for x
    x = 1,891,241,371,620.51/1,231,123.96
  6. Step 6: Final answer
    x = 1,536,190.86

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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.