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Finding the Fourth Proportional to 633,699.28, 874,540.02 and 361,854.49

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Solution

The fourth proportional to 633,699.28, 874,540.02 and 361,854.49 is: 499,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,699.28 : 874,540.02 = 361,854.49 : x
  2. Step 2: Convert to fraction form
    633,699.28/874,540.02 = 361,854.49/x
  3. Step 3: Cross multiply
    633,699.28x = 874,540.02 × 361,854.49
  4. Step 4: Simplify right side
    633,699.28x = 316,456,232,921.69
  5. Step 5: Solve for x
    x = 316,456,232,921.69/633,699.28
  6. Step 6: Final answer
    x = 499,379.19

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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.