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Finding the Fourth Proportional to 637,562.67, 879,836.40 and 351,082.05

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Solution

The fourth proportional to 637,562.67, 879,836.40 and 351,082.05 is: 484,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,562.67 : 879,836.40 = 351,082.05 : x
  2. Step 2: Convert to fraction form
    637,562.67/879,836.40 = 351,082.05/x
  3. Step 3: Cross multiply
    637,562.67x = 879,836.40 × 351,082.05
  4. Step 4: Simplify right side
    637,562.67x = 308,894,766,976.62
  5. Step 5: Solve for x
    x = 308,894,766,976.62/637,562.67
  6. Step 6: Final answer
    x = 484,493.18

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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.