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Finding the Fourth Proportional to 637,761.66, 880,111 and 351,281.73

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Solution

The fourth proportional to 637,761.66, 880,111 and 351,281.73 is: 484,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,761.66 : 880,111 = 351,281.73 : x
  2. Step 2: Convert to fraction form
    637,761.66/880,111 = 351,281.73/x
  3. Step 3: Cross multiply
    637,761.66x = 880,111 × 351,281.73
  4. Step 4: Simplify right side
    637,761.66x = 309,166,914,672.03
  5. Step 5: Solve for x
    x = 309,166,914,672.03/637,761.66
  6. Step 6: Final answer
    x = 484,768.74

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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.