Home / 727,383.09-1,003,819.80-405,093.18

Finding the Fourth Proportional to 727,383.09, 1,003,819.80 and 405,093.18

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Solution

The fourth proportional to 727,383.09, 1,003,819.80 and 405,093.18 is: 559,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,383.09 : 1,003,819.80 = 405,093.18 : x
  2. Step 2: Convert to fraction form
    727,383.09/1,003,819.80 = 405,093.18/x
  3. Step 3: Cross multiply
    727,383.09x = 1,003,819.80 × 405,093.18
  4. Step 4: Simplify right side
    727,383.09x = 406,640,554,928.96
  5. Step 5: Solve for x
    x = 406,640,554,928.96/727,383.09
  6. Step 6: Final answer
    x = 559,045.93

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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.