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Finding the Fourth Proportional to 427,818.81, 590,668.49 and 274,915.92

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Solution

The fourth proportional to 427,818.81, 590,668.49 and 274,915.92 is: 379,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,818.81 : 590,668.49 = 274,915.92 : x
  2. Step 2: Convert to fraction form
    427,818.81/590,668.49 = 274,915.92/x
  3. Step 3: Cross multiply
    427,818.81x = 590,668.49 × 274,915.92
  4. Step 4: Simplify right side
    427,818.81x = 162,384,171,343.36
  5. Step 5: Solve for x
    x = 162,384,171,343.36/427,818.81
  6. Step 6: Final answer
    x = 379,562.95

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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.