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Finding the Fourth Proportional to 637,942.15, 880,361 and 347,552.29

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Solution

The fourth proportional to 637,942.15, 880,361 and 347,552.29 is: 479,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,942.15 : 880,361 = 347,552.29 : x
  2. Step 2: Convert to fraction form
    637,942.15/880,361 = 347,552.29/x
  3. Step 3: Cross multiply
    637,942.15x = 880,361 × 347,552.29
  4. Step 4: Simplify right side
    637,942.15x = 305,971,481,576.69
  5. Step 5: Solve for x
    x = 305,971,481,576.69/637,942.15
  6. Step 6: Final answer
    x = 479,622.61

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1.5x scale

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.