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Finding the Fourth Proportional to 404,574.80, 606,181.80 and 320,010.80

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Solution

The fourth proportional to 404,574.80, 606,181.80 and 320,010.80 is: 479,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,574.80 : 606,181.80 = 320,010.80 : x
  2. Step 2: Convert to fraction form
    404,574.80/606,181.80 = 320,010.80/x
  3. Step 3: Cross multiply
    404,574.80x = 606,181.80 × 320,010.80
  4. Step 4: Simplify right side
    404,574.80x = 193,984,722,763.44
  5. Step 5: Solve for x
    x = 193,984,722,763.44/404,574.80
  6. Step 6: Final answer
    x = 479,478.02

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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.