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Finding the Fourth Proportional to 629,902.37, 869,264.66 and 343,422.38

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Solution

The fourth proportional to 629,902.37, 869,264.66 and 343,422.38 is: 473,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,902.37 : 869,264.66 = 343,422.38 : x
  2. Step 2: Convert to fraction form
    629,902.37/869,264.66 = 343,422.38/x
  3. Step 3: Cross multiply
    629,902.37x = 869,264.66 × 343,422.38
  4. Step 4: Simplify right side
    629,902.37x = 298,524,941,418.81
  5. Step 5: Solve for x
    x = 298,524,941,418.81/629,902.37
  6. Step 6: Final answer
    x = 473,922.55

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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.