Home / 727,854.21-1,004,425.25-405,557.37

Finding the Fourth Proportional to 727,854.21, 1,004,425.25 and 405,557.37

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Solution

The fourth proportional to 727,854.21, 1,004,425.25 and 405,557.37 is: 559,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,854.21 : 1,004,425.25 = 405,557.37 : x
  2. Step 2: Convert to fraction form
    727,854.21/1,004,425.25 = 405,557.37/x
  3. Step 3: Cross multiply
    727,854.21x = 1,004,425.25 × 405,557.37
  4. Step 4: Simplify right side
    727,854.21x = 407,352,060,723.81
  5. Step 5: Solve for x
    x = 407,352,060,723.81/727,854.21
  6. Step 6: Final answer
    x = 559,661.61

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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.