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Finding the Fourth Proportional to 629,929.44, 869,301.86 and 343,449.45

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Solution

The fourth proportional to 629,929.44, 869,301.86 and 343,449.45 is: 473,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,929.44 : 869,301.86 = 343,449.45 : x
  2. Step 2: Convert to fraction form
    629,929.44/869,301.86 = 343,449.45/x
  3. Step 3: Cross multiply
    629,929.44x = 869,301.86 × 343,449.45
  4. Step 4: Simplify right side
    629,929.44x = 298,561,243,983.73
  5. Step 5: Solve for x
    x = 298,561,243,983.73/629,929.44
  6. Step 6: Final answer
    x = 473,959.82

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1.5x scale

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.