Home / 557,650.40-835,552.20-320,579.60

Finding the Fourth Proportional to 557,650.40, 835,552.20 and 320,579.60

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Solution

The fourth proportional to 557,650.40, 835,552.20 and 320,579.60 is: 480,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,650.40 : 835,552.20 = 320,579.60 : x
  2. Step 2: Convert to fraction form
    557,650.40/835,552.20 = 320,579.60/x
  3. Step 3: Cross multiply
    557,650.40x = 835,552.20 × 320,579.60
  4. Step 4: Simplify right side
    557,650.40x = 267,860,990,055.12
  5. Step 5: Solve for x
    x = 267,860,990,055.12/557,650.40
  6. Step 6: Final answer
    x = 480,338.56

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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.