Home / 727,698.54-1,004,198.67-405,391.98

Finding the Fourth Proportional to 727,698.54, 1,004,198.67 and 405,391.98

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Solution

The fourth proportional to 727,698.54, 1,004,198.67 and 405,391.98 is: 559,426.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,698.54 : 1,004,198.67 = 405,391.98 : x
  2. Step 2: Convert to fraction form
    727,698.54/1,004,198.67 = 405,391.98/x
  3. Step 3: Cross multiply
    727,698.54x = 1,004,198.67 × 405,391.98
  4. Step 4: Simplify right side
    727,698.54x = 407,094,087,144.67
  5. Step 5: Solve for x
    x = 407,094,087,144.67/727,698.54
  6. Step 6: Final answer
    x = 559,426.83

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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.