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Finding the Fourth Proportional to 637,696.89, 880,061.58 and 351,216.90

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Solution

The fourth proportional to 637,696.89, 880,061.58 and 351,216.90 is: 484,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,696.89 : 880,061.58 = 351,216.90 : x
  2. Step 2: Convert to fraction form
    637,696.89/880,061.58 = 351,216.90/x
  3. Step 3: Cross multiply
    637,696.89x = 880,061.58 × 351,216.90
  4. Step 4: Simplify right side
    637,696.89x = 309,092,499,936.70
  5. Step 5: Solve for x
    x = 309,092,499,936.70/637,696.89
  6. Step 6: Final answer
    x = 484,701.28

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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.