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Finding the Fourth Proportional to 456,589.59, 629,950.82 and 275,356.95

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Solution

The fourth proportional to 456,589.59, 629,950.82 and 275,356.95 is: 379,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,589.59 : 629,950.82 = 275,356.95 : x
  2. Step 2: Convert to fraction form
    456,589.59/629,950.82 = 275,356.95/x
  3. Step 3: Cross multiply
    456,589.59x = 629,950.82 × 275,356.95
  4. Step 4: Simplify right side
    456,589.59x = 173,461,335,068.41
  5. Step 5: Solve for x
    x = 173,461,335,068.41/456,589.59
  6. Step 6: Final answer
    x = 379,906.46

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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.