Home / 491,869.02-678,761.33-274,066.44

Finding the Fourth Proportional to 491,869.02, 678,761.33 and 274,066.44

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Solution

The fourth proportional to 491,869.02, 678,761.33 and 274,066.44 is: 378,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,869.02 : 678,761.33 = 274,066.44 : x
  2. Step 2: Convert to fraction form
    491,869.02/678,761.33 = 274,066.44/x
  3. Step 3: Cross multiply
    491,869.02x = 678,761.33 × 274,066.44
  4. Step 4: Simplify right side
    491,869.02x = 186,025,696,558.63
  5. Step 5: Solve for x
    x = 186,025,696,558.63/491,869.02
  6. Step 6: Final answer
    x = 378,201.70

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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.