Home / 727,453.62-1,003,917.15-405,163.80

Finding the Fourth Proportional to 727,453.62, 1,003,917.15 and 405,163.80

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Solution

The fourth proportional to 727,453.62, 1,003,917.15 and 405,163.80 is: 559,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,453.62 : 1,003,917.15 = 405,163.80 : x
  2. Step 2: Convert to fraction form
    727,453.62/1,003,917.15 = 405,163.80/x
  3. Step 3: Cross multiply
    727,453.62x = 1,003,917.15 × 405,163.80
  4. Step 4: Simplify right side
    727,453.62x = 406,750,887,379.17
  5. Step 5: Solve for x
    x = 406,750,887,379.17/727,453.62
  6. Step 6: Final answer
    x = 559,143.40

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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.