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Finding the Fourth Proportional to 637,063.72, 956,186.34 and 321,741.88

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Solution

The fourth proportional to 637,063.72, 956,186.34 and 321,741.88 is: 482,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,063.72 : 956,186.34 = 321,741.88 : x
  2. Step 2: Convert to fraction form
    637,063.72/956,186.34 = 321,741.88/x
  3. Step 3: Cross multiply
    637,063.72x = 956,186.34 × 321,741.88
  4. Step 4: Simplify right side
    637,063.72x = 307,645,190,661.92
  5. Step 5: Solve for x
    x = 307,645,190,661.92/637,063.72
  6. Step 6: Final answer
    x = 482,911.18

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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.