Home / 727,821.71-1,004,380.56-405,524.87

Finding the Fourth Proportional to 727,821.71, 1,004,380.56 and 405,524.87

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Solution

The fourth proportional to 727,821.71, 1,004,380.56 and 405,524.87 is: 559,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,821.71 : 1,004,380.56 = 405,524.87 : x
  2. Step 2: Convert to fraction form
    727,821.71/1,004,380.56 = 405,524.87/x
  3. Step 3: Cross multiply
    727,821.71x = 1,004,380.56 × 405,524.87
  4. Step 4: Simplify right side
    727,821.71x = 407,301,291,002.62
  5. Step 5: Solve for x
    x = 407,301,291,002.62/727,821.71
  6. Step 6: Final answer
    x = 559,616.85

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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.