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Finding the Fourth Proportional to 484,811.20, 728,383.20 and 433,489.60

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Solution

The fourth proportional to 484,811.20, 728,383.20 and 433,489.60 is: 651,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,811.20 : 728,383.20 = 433,489.60 : x
  2. Step 2: Convert to fraction form
    484,811.20/728,383.20 = 433,489.60/x
  3. Step 3: Cross multiply
    484,811.20x = 728,383.20 × 433,489.60
  4. Step 4: Simplify right side
    484,811.20x = 315,746,542,014.72
  5. Step 5: Solve for x
    x = 315,746,542,014.72/484,811.20
  6. Step 6: Final answer
    x = 651,277.33

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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.