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Finding the Fourth Proportional to 499,108.82, 688,770.46 and 272,754.32

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Solution

The fourth proportional to 499,108.82, 688,770.46 and 272,754.32 is: 376,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,108.82 : 688,770.46 = 272,754.32 : x
  2. Step 2: Convert to fraction form
    499,108.82/688,770.46 = 272,754.32/x
  3. Step 3: Cross multiply
    499,108.82x = 688,770.46 × 272,754.32
  4. Step 4: Simplify right side
    499,108.82x = 187,865,118,453.39
  5. Step 5: Solve for x
    x = 187,865,118,453.39/499,108.82
  6. Step 6: Final answer
    x = 376,401.12

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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.