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Finding the Fourth Proportional to 400,620.96, 600,516.14 and 250,516.67

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Solution

The fourth proportional to 400,620.96, 600,516.14 and 250,516.67 is: 375,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,620.96 : 600,516.14 = 250,516.67 : x
  2. Step 2: Convert to fraction form
    400,620.96/600,516.14 = 250,516.67/x
  3. Step 3: Cross multiply
    400,620.96x = 600,516.14 × 250,516.67
  4. Step 4: Simplify right side
    400,620.96x = 150,439,299,418.89
  5. Step 5: Solve for x
    x = 150,439,299,418.89/400,620.96
  6. Step 6: Final answer
    x = 375,515.30

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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.