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Finding the Fourth Proportional to 560,484.72, 773,668.32 and 331,042.88

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Solution

The fourth proportional to 560,484.72, 773,668.32 and 331,042.88 is: 456,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,484.72 : 773,668.32 = 331,042.88 : x
  2. Step 2: Convert to fraction form
    560,484.72/773,668.32 = 331,042.88/x
  3. Step 3: Cross multiply
    560,484.72x = 773,668.32 × 331,042.88
  4. Step 4: Simplify right side
    560,484.72x = 256,117,388,817.56
  5. Step 5: Solve for x
    x = 256,117,388,817.56/560,484.72
  6. Step 6: Final answer
    x = 456,956.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.