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Finding the Fourth Proportional to 633,802.38, 874,671.42 and 361,914.54

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Solution

The fourth proportional to 633,802.38, 874,671.42 and 361,914.54 is: 499,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,802.38 : 874,671.42 = 361,914.54 : x
  2. Step 2: Convert to fraction form
    633,802.38/874,671.42 = 361,914.54/x
  3. Step 3: Cross multiply
    633,802.38x = 874,671.42 × 361,914.54
  4. Step 4: Simplify right side
    633,802.38x = 316,556,304,620.45
  5. Step 5: Solve for x
    x = 316,556,304,620.45/633,802.38
  6. Step 6: Final answer
    x = 499,455.85

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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.