Home / 649,315.20-973,972.80-228,633.60

Finding the Fourth Proportional to 649,315.20, 973,972.80 and 228,633.60

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Solution

The fourth proportional to 649,315.20, 973,972.80 and 228,633.60 is: 342,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315.20 : 973,972.80 = 228,633.60 : x
  2. Step 2: Convert to fraction form
    649,315.20/973,972.80 = 228,633.60/x
  3. Step 3: Cross multiply
    649,315.20x = 973,972.80 × 228,633.60
  4. Step 4: Simplify right side
    649,315.20x = 222,682,907,566.08
  5. Step 5: Solve for x
    x = 222,682,907,566.08/649,315.20
  6. Step 6: Final answer
    x = 342,950.40

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Double scale
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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.