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Finding the Fourth Proportional to 557,101.72, 768,803.58 and 327,668.71

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Solution

The fourth proportional to 557,101.72, 768,803.58 and 327,668.71 is: 452,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,101.72 : 768,803.58 = 327,668.71 : x
  2. Step 2: Convert to fraction form
    557,101.72/768,803.58 = 327,668.71/x
  3. Step 3: Cross multiply
    557,101.72x = 768,803.58 × 327,668.71
  4. Step 4: Simplify right side
    557,101.72x = 251,912,877,301.98
  5. Step 5: Solve for x
    x = 251,912,877,301.98/557,101.72
  6. Step 6: Final answer
    x = 452,184.71

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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.