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Finding the Fourth Proportional to 637,056.72, 956,175.84 and 321,734.88

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Solution

The fourth proportional to 637,056.72, 956,175.84 and 321,734.88 is: 482,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,056.72 : 956,175.84 = 321,734.88 : x
  2. Step 2: Convert to fraction form
    637,056.72/956,175.84 = 321,734.88/x
  3. Step 3: Cross multiply
    637,056.72x = 956,175.84 × 321,734.88
  4. Step 4: Simplify right side
    637,056.72x = 307,635,119,141.30
  5. Step 5: Solve for x
    x = 307,635,119,141.30/637,056.72
  6. Step 6: Final answer
    x = 482,900.67

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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.