Home / 727,439.22-1,003,897.41-405,149.46

Finding the Fourth Proportional to 727,439.22, 1,003,897.41 and 405,149.46

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Solution

The fourth proportional to 727,439.22, 1,003,897.41 and 405,149.46 is: 559,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,439.22 : 1,003,897.41 = 405,149.46 : x
  2. Step 2: Convert to fraction form
    727,439.22/1,003,897.41 = 405,149.46/x
  3. Step 3: Cross multiply
    727,439.22x = 1,003,897.41 × 405,149.46
  4. Step 4: Simplify right side
    727,439.22x = 406,728,493,556.90
  5. Step 5: Solve for x
    x = 406,728,493,556.90/727,439.22
  6. Step 6: Final answer
    x = 559,123.68

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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.