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Finding the Fourth Proportional to 633,695.76, 874,494.43 and 343,300.66

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Solution

The fourth proportional to 633,695.76, 874,494.43 and 343,300.66 is: 473,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,695.76 : 874,494.43 = 343,300.66 : x
  2. Step 2: Convert to fraction form
    633,695.76/874,494.43 = 343,300.66/x
  3. Step 3: Cross multiply
    633,695.76x = 874,494.43 × 343,300.66
  4. Step 4: Simplify right side
    633,695.76x = 300,214,511,940.84
  5. Step 5: Solve for x
    x = 300,214,511,940.84/633,695.76
  6. Step 6: Final answer
    x = 473,751.81

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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.