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Finding the Fourth Proportional to 508,972.16, 701,992.32 and 345,754.56

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Solution

The fourth proportional to 508,972.16, 701,992.32 and 345,754.56 is: 476,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,972.16 : 701,992.32 = 345,754.56 : x
  2. Step 2: Convert to fraction form
    508,972.16/701,992.32 = 345,754.56/x
  3. Step 3: Cross multiply
    508,972.16x = 701,992.32 × 345,754.56
  4. Step 4: Simplify right side
    508,972.16x = 242,717,045,724.98
  5. Step 5: Solve for x
    x = 242,717,045,724.98/508,972.16
  6. Step 6: Final answer
    x = 476,876.86

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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.