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Finding the Fourth Proportional to 456,229.20, 685,510.20 and 404,907.60

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Solution

The fourth proportional to 456,229.20, 685,510.20 and 404,907.60 is: 608,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,229.20 : 685,510.20 = 404,907.60 : x
  2. Step 2: Convert to fraction form
    456,229.20/685,510.20 = 404,907.60/x
  3. Step 3: Cross multiply
    456,229.20x = 685,510.20 × 404,907.60
  4. Step 4: Simplify right side
    456,229.20x = 277,568,289,857.52
  5. Step 5: Solve for x
    x = 277,568,289,857.52/456,229.20
  6. Step 6: Final answer
    x = 608,396.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.