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Finding the Fourth Proportional to 633,967.38, 874,896.66 and 347,487.39

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Solution

The fourth proportional to 633,967.38, 874,896.66 and 347,487.39 is: 479,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,967.38 : 874,896.66 = 347,487.39 : x
  2. Step 2: Convert to fraction form
    633,967.38/874,896.66 = 347,487.39/x
  3. Step 3: Cross multiply
    633,967.38x = 874,896.66 × 347,487.39
  4. Step 4: Simplify right side
    633,967.38x = 304,015,556,903.12
  5. Step 5: Solve for x
    x = 304,015,556,903.12/633,967.38
  6. Step 6: Final answer
    x = 479,544.48

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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.