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Finding the Fourth Proportional to 557,331.20, 835,651.20 and 320,556.80

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Solution

The fourth proportional to 557,331.20, 835,651.20 and 320,556.80 is: 480,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,331.20 : 835,651.20 = 320,556.80 : x
  2. Step 2: Convert to fraction form
    557,331.20/835,651.20 = 320,556.80/x
  3. Step 3: Cross multiply
    557,331.20x = 835,651.20 × 320,556.80
  4. Step 4: Simplify right side
    557,331.20x = 267,873,674,588.16
  5. Step 5: Solve for x
    x = 267,873,674,588.16/557,331.20
  6. Step 6: Final answer
    x = 480,636.42

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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.