Home / 1,231,553.88-1,699,548.04-687,709.51

Finding the Fourth Proportional to 1,231,553.88, 1,699,548.04 and 687,709.51

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Solution

The fourth proportional to 1,231,553.88, 1,699,548.04 and 687,709.51 is: 949,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,553.88 : 1,699,548.04 = 687,709.51 : x
  2. Step 2: Convert to fraction form
    1,231,553.88/1,699,548.04 = 687,709.51/x
  3. Step 3: Cross multiply
    1,231,553.88x = 1,699,548.04 × 687,709.51
  4. Step 4: Simplify right side
    1,231,553.88x = 1,168,795,349,749.95
  5. Step 5: Solve for x
    x = 1,168,795,349,749.95/1,231,553.88
  6. Step 6: Final answer
    x = 949,041.19

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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.