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Finding the Fourth Proportional to 637,705.98, 880,074.20 and 351,226

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Solution

The fourth proportional to 637,705.98, 880,074.20 and 351,226 is: 484,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,705.98 : 880,074.20 = 351,226 : x
  2. Step 2: Convert to fraction form
    637,705.98/880,074.20 = 351,226/x
  3. Step 3: Cross multiply
    637,705.98x = 880,074.20 × 351,226
  4. Step 4: Simplify right side
    637,705.98x = 309,104,940,969.20
  5. Step 5: Solve for x
    x = 309,104,940,969.20/637,705.98
  6. Step 6: Final answer
    x = 484,713.88

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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.