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Finding the Fourth Proportional to 715,059, 1,072,588.50 and 265,892.94

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Solution

The fourth proportional to 715,059, 1,072,588.50 and 265,892.94 is: 398,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,059 : 1,072,588.50 = 265,892.94 : x
  2. Step 2: Convert to fraction form
    715,059/1,072,588.50 = 265,892.94/x
  3. Step 3: Cross multiply
    715,059x = 1,072,588.50 × 265,892.94
  4. Step 4: Simplify right side
    715,059x = 285,193,709,675.19
  5. Step 5: Solve for x
    x = 285,193,709,675.19/715,059
  6. Step 6: Final answer
    x = 398,839.41

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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.