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Finding the Fourth Proportional to 629,751.61, 869,057.24 and 343,271.69

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Solution

The fourth proportional to 629,751.61, 869,057.24 and 343,271.69 is: 473,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,751.61 : 869,057.24 = 343,271.69 : x
  2. Step 2: Convert to fraction form
    629,751.61/869,057.24 = 343,271.69/x
  3. Step 3: Cross multiply
    629,751.61x = 869,057.24 × 343,271.69
  4. Step 4: Simplify right side
    629,751.61x = 298,322,750,512.36
  5. Step 5: Solve for x
    x = 298,322,750,512.36/629,751.61
  6. Step 6: Final answer
    x = 473,714.95

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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.