Home / 727,820.83-1,004,379.41-405,523.96

Finding the Fourth Proportional to 727,820.83, 1,004,379.41 and 405,523.96

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Solution

The fourth proportional to 727,820.83, 1,004,379.41 and 405,523.96 is: 559,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,820.83 : 1,004,379.41 = 405,523.96 : x
  2. Step 2: Convert to fraction form
    727,820.83/1,004,379.41 = 405,523.96/x
  3. Step 3: Cross multiply
    727,820.83x = 1,004,379.41 × 405,523.96
  4. Step 4: Simplify right side
    727,820.83x = 407,299,915,685.66
  5. Step 5: Solve for x
    x = 407,299,915,685.66/727,820.83
  6. Step 6: Final answer
    x = 559,615.63

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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.