Home / 404,687.18-557,949.47-331,821.80

Finding the Fourth Proportional to 404,687.18, 557,949.47 and 331,821.80

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Solution

The fourth proportional to 404,687.18, 557,949.47 and 331,821.80 is: 457,488.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,687.18 : 557,949.47 = 331,821.80 : x
  2. Step 2: Convert to fraction form
    404,687.18/557,949.47 = 331,821.80/x
  3. Step 3: Cross multiply
    404,687.18x = 557,949.47 × 331,821.80
  4. Step 4: Simplify right side
    404,687.18x = 185,139,795,785.34
  5. Step 5: Solve for x
    x = 185,139,795,785.34/404,687.18
  6. Step 6: Final answer
    x = 457,488.67

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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.