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Finding the Fourth Proportional to 633,542.49, 874,310.40 and 347,062.50

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Solution

The fourth proportional to 633,542.49, 874,310.40 and 347,062.50 is: 478,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,542.49 : 874,310.40 = 347,062.50 : x
  2. Step 2: Convert to fraction form
    633,542.49/874,310.40 = 347,062.50/x
  3. Step 3: Cross multiply
    633,542.49x = 874,310.40 × 347,062.50
  4. Step 4: Simplify right side
    633,542.49x = 303,440,353,200
  5. Step 5: Solve for x
    x = 303,440,353,200/633,542.49
  6. Step 6: Final answer
    x = 478,958.17

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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.