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Finding the Fourth Proportional to 633,992.34, 874,999.13 and 392,352.72

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Solution

The fourth proportional to 633,992.34, 874,999.13 and 392,352.72 is: 541,502.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,992.34 : 874,999.13 = 392,352.72 : x
  2. Step 2: Convert to fraction form
    633,992.34/874,999.13 = 392,352.72/x
  3. Step 3: Cross multiply
    633,992.34x = 874,999.13 × 392,352.72
  4. Step 4: Simplify right side
    633,992.34x = 343,308,286,691.37
  5. Step 5: Solve for x
    x = 343,308,286,691.37/633,992.34
  6. Step 6: Final answer
    x = 541,502.26

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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.