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Finding the Fourth Proportional to 637,942.88, 880,350.84 and 347,557.90

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Solution

The fourth proportional to 637,942.88, 880,350.84 and 347,557.90 is: 479,624.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,942.88 : 880,350.84 = 347,557.90 : x
  2. Step 2: Convert to fraction form
    637,942.88/880,350.84 = 347,557.90/x
  3. Step 3: Cross multiply
    637,942.88x = 880,350.84 × 347,557.90
  4. Step 4: Simplify right side
    637,942.88x = 305,972,889,213.64
  5. Step 5: Solve for x
    x = 305,972,889,213.64/637,942.88
  6. Step 6: Final answer
    x = 479,624.27

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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.