Home / 727,846.96-1,004,415.40-405,550.12

Finding the Fourth Proportional to 727,846.96, 1,004,415.40 and 405,550.12

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Solution

The fourth proportional to 727,846.96, 1,004,415.40 and 405,550.12 is: 559,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,846.96 : 1,004,415.40 = 405,550.12 : x
  2. Step 2: Convert to fraction form
    727,846.96/1,004,415.40 = 405,550.12/x
  3. Step 3: Cross multiply
    727,846.96x = 1,004,415.40 × 405,550.12
  4. Step 4: Simplify right side
    727,846.96x = 407,340,785,999.85
  5. Step 5: Solve for x
    x = 407,340,785,999.85/727,846.96
  6. Step 6: Final answer
    x = 559,651.70

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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.