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Finding the Fourth Proportional to 629,765.32, 869,100.42 and 343,301.80

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Solution

The fourth proportional to 629,765.32, 869,100.42 and 343,301.80 is: 473,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,765.32 : 869,100.42 = 343,301.80 : x
  2. Step 2: Convert to fraction form
    629,765.32/869,100.42 = 343,301.80/x
  3. Step 3: Cross multiply
    629,765.32x = 869,100.42 × 343,301.80
  4. Step 4: Simplify right side
    629,765.32x = 298,363,738,566.76
  5. Step 5: Solve for x
    x = 298,363,738,566.76/629,765.32
  6. Step 6: Final answer
    x = 473,769.72

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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.