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Finding the Fourth Proportional to 661,654.98, 992,580.89 and 306,704.88

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Solution

The fourth proportional to 661,654.98, 992,580.89 and 306,704.88 is: 460,102.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,654.98 : 992,580.89 = 306,704.88 : x
  2. Step 2: Convert to fraction form
    661,654.98/992,580.89 = 306,704.88/x
  3. Step 3: Cross multiply
    661,654.98x = 992,580.89 × 306,704.88
  4. Step 4: Simplify right side
    661,654.98x = 304,429,401,224.22
  5. Step 5: Solve for x
    x = 304,429,401,224.22/661,654.98
  6. Step 6: Final answer
    x = 460,102.94

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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.