Home / 727,391.96-1,003,832.05-405,102.06

Finding the Fourth Proportional to 727,391.96, 1,003,832.05 and 405,102.06

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Solution

The fourth proportional to 727,391.96, 1,003,832.05 and 405,102.06 is: 559,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,391.96 : 1,003,832.05 = 405,102.06 : x
  2. Step 2: Convert to fraction form
    727,391.96/1,003,832.05 = 405,102.06/x
  3. Step 3: Cross multiply
    727,391.96x = 1,003,832.05 × 405,102.06
  4. Step 4: Simplify right side
    727,391.96x = 406,654,431,978.84
  5. Step 5: Solve for x
    x = 406,654,431,978.84/727,391.96
  6. Step 6: Final answer
    x = 559,058.19

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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.