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Finding the Fourth Proportional to 436,635.56, 654,915.82 and 265,812.93

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Solution

The fourth proportional to 436,635.56, 654,915.82 and 265,812.93 is: 398,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,635.56 : 654,915.82 = 265,812.93 : x
  2. Step 2: Convert to fraction form
    436,635.56/654,915.82 = 265,812.93/x
  3. Step 3: Cross multiply
    436,635.56x = 654,915.82 × 265,812.93
  4. Step 4: Simplify right side
    436,635.56x = 174,085,093,990.31
  5. Step 5: Solve for x
    x = 174,085,093,990.31/436,635.56
  6. Step 6: Final answer
    x = 398,696.56

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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.