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Finding the Fourth Proportional to 499,234.55, 688,991.90 and 295,351.02

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Solution

The fourth proportional to 499,234.55, 688,991.90 and 295,351.02 is: 407,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,234.55 : 688,991.90 = 295,351.02 : x
  2. Step 2: Convert to fraction form
    499,234.55/688,991.90 = 295,351.02/x
  3. Step 3: Cross multiply
    499,234.55x = 688,991.90 × 295,351.02
  4. Step 4: Simplify right side
    499,234.55x = 203,494,458,959.98
  5. Step 5: Solve for x
    x = 203,494,458,959.98/499,234.55
  6. Step 6: Final answer
    x = 407,612.94

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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.