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Finding the Fourth Proportional to 816,958.72, 1,224,777.12 and 367,350.40

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Solution

The fourth proportional to 816,958.72, 1,224,777.12 and 367,350.40 is: 550,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,958.72 : 1,224,777.12 = 367,350.40 : x
  2. Step 2: Convert to fraction form
    816,958.72/1,224,777.12 = 367,350.40/x
  3. Step 3: Cross multiply
    816,958.72x = 1,224,777.12 × 367,350.40
  4. Step 4: Simplify right side
    816,958.72x = 449,922,364,942.85
  5. Step 5: Solve for x
    x = 449,922,364,942.85/816,958.72
  6. Step 6: Final answer
    x = 550,728.40

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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.