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Finding the Fourth Proportional to 496,505.78, 744,166.83 and 345,930.74

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Solution

The fourth proportional to 496,505.78, 744,166.83 and 345,930.74 is: 518,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,505.78 : 744,166.83 = 345,930.74 : x
  2. Step 2: Convert to fraction form
    496,505.78/744,166.83 = 345,930.74/x
  3. Step 3: Cross multiply
    496,505.78x = 744,166.83 × 345,930.74
  4. Step 4: Simplify right side
    496,505.78x = 257,430,182,185.35
  5. Step 5: Solve for x
    x = 257,430,182,185.35/496,505.78
  6. Step 6: Final answer
    x = 518,483.76

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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.