Home / 727,871.60-1,004,536.68-405,634.16

Finding the Fourth Proportional to 727,871.60, 1,004,536.68 and 405,634.16

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Solution

The fourth proportional to 727,871.60, 1,004,536.68 and 405,634.16 is: 559,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,871.60 : 1,004,536.68 = 405,634.16 : x
  2. Step 2: Convert to fraction form
    727,871.60/1,004,536.68 = 405,634.16/x
  3. Step 3: Cross multiply
    727,871.60x = 1,004,536.68 × 405,634.16
  4. Step 4: Simplify right side
    727,871.60x = 407,474,392,380.99
  5. Step 5: Solve for x
    x = 407,474,392,380.99/727,871.60
  6. Step 6: Final answer
    x = 559,816.31

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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.