Home / 649,311.20-973,966.80-228,629.60

Finding the Fourth Proportional to 649,311.20, 973,966.80 and 228,629.60

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Solution

The fourth proportional to 649,311.20, 973,966.80 and 228,629.60 is: 342,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,311.20 : 973,966.80 = 228,629.60 : x
  2. Step 2: Convert to fraction form
    649,311.20/973,966.80 = 228,629.60/x
  3. Step 3: Cross multiply
    649,311.20x = 973,966.80 × 228,629.60
  4. Step 4: Simplify right side
    649,311.20x = 222,677,639,897.28
  5. Step 5: Solve for x
    x = 222,677,639,897.28/649,311.20
  6. Step 6: Final answer
    x = 342,944.40

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Similar ratio
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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.