Home / 727,462.62-1,003,929.57-405,172.80

Finding the Fourth Proportional to 727,462.62, 1,003,929.57 and 405,172.80

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Solution

The fourth proportional to 727,462.62, 1,003,929.57 and 405,172.80 is: 559,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,462.62 : 1,003,929.57 = 405,172.80 : x
  2. Step 2: Convert to fraction form
    727,462.62/1,003,929.57 = 405,172.80/x
  3. Step 3: Cross multiply
    727,462.62x = 1,003,929.57 × 405,172.80
  4. Step 4: Simplify right side
    727,462.62x = 406,764,954,879.70
  5. Step 5: Solve for x
    x = 406,764,954,879.70/727,462.62
  6. Step 6: Final answer
    x = 559,155.82

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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.