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Finding the Fourth Proportional to 629,632.88, 868,868.08 and 343,146.82

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Solution

The fourth proportional to 629,632.88, 868,868.08 and 343,146.82 is: 473,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,632.88 : 868,868.08 = 343,146.82 : x
  2. Step 2: Convert to fraction form
    629,632.88/868,868.08 = 343,146.82/x
  3. Step 3: Cross multiply
    629,632.88x = 868,868.08 × 343,146.82
  4. Step 4: Simplify right side
    629,632.88x = 298,149,318,651.51
  5. Step 5: Solve for x
    x = 298,149,318,651.51/629,632.88
  6. Step 6: Final answer
    x = 473,528.83

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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.