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Finding the Fourth Proportional to 400,451.65, 599,922.35 and 311,271.86

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Solution

The fourth proportional to 400,451.65, 599,922.35 and 311,271.86 is: 466,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,451.65 : 599,922.35 = 311,271.86 : x
  2. Step 2: Convert to fraction form
    400,451.65/599,922.35 = 311,271.86/x
  3. Step 3: Cross multiply
    400,451.65x = 599,922.35 × 311,271.86
  4. Step 4: Simplify right side
    400,451.65x = 186,738,946,850.79
  5. Step 5: Solve for x
    x = 186,738,946,850.79/400,451.65
  6. Step 6: Final answer
    x = 466,320.84

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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.