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Finding the Fourth Proportional to 637,942.65, 880,361.69 and 347,552.79

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Solution

The fourth proportional to 637,942.65, 880,361.69 and 347,552.79 is: 479,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,942.65 : 880,361.69 = 347,552.79 : x
  2. Step 2: Convert to fraction form
    637,942.65/880,361.69 = 347,552.79/x
  3. Step 3: Cross multiply
    637,942.65x = 880,361.69 × 347,552.79
  4. Step 4: Simplify right side
    637,942.65x = 305,972,161,568.62
  5. Step 5: Solve for x
    x = 305,972,161,568.62/637,942.65
  6. Step 6: Final answer
    x = 479,623.30

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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.