Home / 819,904.04-1,131,469.30-457,318.56

Finding the Fourth Proportional to 819,904.04, 1,131,469.30 and 457,318.56

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Solution

The fourth proportional to 819,904.04, 1,131,469.30 and 457,318.56 is: 631,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,904.04 : 1,131,469.30 = 457,318.56 : x
  2. Step 2: Convert to fraction form
    819,904.04/1,131,469.30 = 457,318.56/x
  3. Step 3: Cross multiply
    819,904.04x = 1,131,469.30 × 457,318.56
  4. Step 4: Simplify right side
    819,904.04x = 517,441,910,960.21
  5. Step 5: Solve for x
    x = 517,441,910,960.21/819,904.04
  6. Step 6: Final answer
    x = 631,100.57

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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.